diff --git a/index.html b/index.html
index 59cace12..ab832725 100644
--- a/index.html
+++ b/index.html
@@ -7716,7 +7716,7 @@
     <script type="module" src="/src/modules/ui/battle-screen.js"></script>
     <script type="module" src="/src/modules/ui/emblems-editor.js"></script>
     <script type="module" src="/src/modules/ui/markers-editor.js"></script>
-    <script type="module" src="/src/modules/ui/3d.js"></script>
+    <script type="module" src="/src/modules/ui/threeD.js"></script>
     <script type="module" src="/src/modules/ui/submap.js"></script>
     <script type="module" src="/src/modules/ui/hotkeys.js"></script>
     <script type="module" src="/src/modules/coa-renderer.js"></script>
diff --git a/src/layers/index.js b/src/layers/index.ts
similarity index 100%
rename from src/layers/index.js
rename to src/layers/index.ts
diff --git a/src/layers/init.ts b/src/layers/init.ts
index b0027531..7735a2c5 100644
--- a/src/layers/init.ts
+++ b/src/layers/init.ts
@@ -1,5 +1,9 @@
+import {getInputValue, setInputValue} from "utils/nodeUtils";
 import {stored, byId, store} from "utils/shorthands";
+import {renderLayer} from "./renderers";
+import {toggleLayerOnClick} from "./toggles";
 import {layerIsOn} from "./utils";
+import {prompt} from "scripts/prompt";
 
 export function initLayers() {
   restoreCustomPresets();
@@ -7,7 +11,7 @@ export function initLayers() {
   addLayerListeners();
 }
 
-let presets = {};
+let presets: Dict<string[]> = {};
 
 const defaultPresets = {
   political: [
@@ -86,23 +90,23 @@ function restoreCustomPresets() {
 
   for (const preset in storedPresets) {
     if (presets[preset]) continue;
-    byId("layersPreset").add(new Option(preset, preset));
+    (byId("layersPreset") as HTMLSelectElement)?.add(new Option(preset, preset));
   }
 
   presets = storedPresets;
 }
 
 function addLayerListeners() {
-  byId("mapLayers").on("click", toggleLayerOnClick);
-  byId("savePresetButton").on("click", savePreset);
-  byId("removePresetButton").on("click", removePreset);
+  byId("mapLayers")?.on("click", toggleLayerOnClick);
+  byId("savePresetButton")?.on("click", savePreset);
+  byId("removePresetButton")?.on("click", removePreset);
 
   // allow to move layers by dragging layer button (jquery)
   $("#mapLayers").sortable({items: "li:not(.solid)", containment: "parent", cancel: ".solid", update: moveLayer});
 }
 
 // connection between option layer buttons and actual svg groups to move the element
-const layerButtonToElementMap = {
+const layerButtonToElementMap: Dict<string> = {
   toggleBiomes: "biomes",
   toggleBorders: "borders",
   toggleCells: "cells",
@@ -131,34 +135,28 @@ const layerButtonToElementMap = {
   toggleZones: "zones"
 };
 
-function moveLayer(event, $layerButton) {
-  const getLayer = buttonId => $("#" + layerButtonToElementMap[buttonId]);
-  const layer = getLayer($layerButton.item.attr("id"));
-  if (!layer) return;
+function moveLayer(_event: Event, layer: JQueryUI.SortableUIParams) {
+  const getLayer = (buttonId: string) => $("#" + layerButtonToElementMap[buttonId]);
+  const layerId = getLayer(layer.item.attr("id") || "");
+  if (!layerId) return;
 
-  const prev = getLayer($layerButton.item.prev().attr("id"));
-  const next = getLayer($layerButton.item.next().attr("id"));
+  const prev = getLayer(layer.item.prev().attr("id") || "");
+  const next = getLayer(layer.item.next().attr("id") || "");
 
-  if (prev) layer.insertAfter(prev);
-  else if (next) layer.insertBefore(next);
-}
-
-function toggleLayerOnClick(event) {
-  const targetId = event.target.id;
-  if (!targetId || targetId === "mapLayers" || !layerTogglesMap[targetId]) return;
-  layerTogglesMap[targetId]();
+  if (prev) layer.item.insertAfter(prev);
+  else if (next) layer.item.insertBefore(next);
 }
 
 // run on map generation
 function applyPreset() {
-  const preset = stored("preset") || byId("layersPreset")?.value || "political";
+  const preset = stored("preset") || getInputValue("layersPreset") || "political";
   changePreset(preset);
 }
 
 // toggle layers on preset change
-function changePreset(preset) {
+function changePreset(preset: string) {
   const layers = presets[preset]; // layers to be turned on
-  const $layerButtons = byId("mapLayers").querySelectorAll("li");
+  const $layerButtons = byId("mapLayers")?.querySelectorAll("li")!;
 
   $layerButtons.forEach(function ($layerButton) {
     const {id} = $layerButton;
@@ -166,36 +164,45 @@ function changePreset(preset) {
     else if (!layers.includes(id) && layerIsOn(id)) $layerButton.click();
   });
 
-  byId("layersPreset").value = preset;
+  setInputValue("layersPreset", preset);
   store("preset", preset);
 
-  const isDefault = defaultPresets[preset];
-  byId("removePresetButton").style.display = isDefault ? "none" : "inline-block";
-  byId("savePresetButton").style.display = "none";
-  if (byId("canvas3d")) setTimeout(ThreeD.update(), 400);
+  const isDefault = preset in defaultPresets;
+
+  const $removeButton = byId("removePresetButton")!;
+  const $saveButton = byId("savePresetButton")!;
+
+  $removeButton.style.display = isDefault ? "none" : "inline-block";
+  $saveButton.style.display = "none";
+
+  if (byId("canvas3d")) setTimeout(window.ThreeD.update(), 400);
 }
 
 function savePreset() {
-  prompt("Please provide a preset name", {default: ""}, preset => {
-    presets[preset] = Array.from(byId("mapLayers").querySelectorAll("li:not(.buttonoff)"))
+  prompt("Please provide a preset name", {default: ""}, returned => {
+    const preset = String(returned);
+    presets[preset] = Array.from(byId("mapLayers")?.querySelectorAll("li:not(.buttonoff)") || [])
       .map(node => node.id)
       .sort();
-    layersPreset.add(new Option(preset, preset, false, true));
+
+    (byId("layersPreset") as HTMLSelectElement)?.add(new Option(preset, preset, false, true));
     localStorage.setItem("presets", JSON.stringify(presets));
     localStorage.setItem("preset", preset);
-    removePresetButton.style.display = "inline-block";
-    savePresetButton.style.display = "none";
+    byId("removePresetButton")!.style.display = "inline-block";
+    byId("savePresetButton")!.style.display = "none";
   });
 }
 
 function removePreset() {
-  const preset = layersPreset.value;
+  const $layersPreset = byId("layersPreset") as HTMLSelectElement;
+  const preset = $layersPreset.value;
   delete presets[preset];
-  const index = Array.from(layersPreset.options).findIndex(o => o.value === preset);
-  layersPreset.options.remove(index);
-  layersPreset.value = "custom";
-  removePresetButton.style.display = "none";
-  savePresetButton.style.display = "inline-block";
+  const index = Array.from($layersPreset.options).findIndex(option => option.value === preset);
+  $layersPreset.options.remove(index);
+  $layersPreset.value = "custom";
+
+  byId("removePresetButton")!.style.display = "none";
+  byId("savePresetButton")!.style.display = "inline-block";
 
   store("presets", JSON.stringify(presets));
   localStorage.removeItem("preset");
@@ -203,22 +210,22 @@ function removePreset() {
 
 // run on map regeneration
 export function restoreLayers() {
-  if (layerIsOn("toggleHeight")) drawHeightmap();
-  if (layerIsOn("toggleCells")) drawCells();
-  if (layerIsOn("toggleGrid")) drawGrid();
-  if (layerIsOn("toggleCoordinates")) drawCoordinates();
+  if (layerIsOn("toggleHeight")) renderLayer("heightmap");
+  if (layerIsOn("toggleCells")) renderLayer("cells");
+  if (layerIsOn("toggleGrid")) renderLayer("grid");
+  if (layerIsOn("toggleCoordinates")) renderLayer("coordinates");
   if (layerIsOn("toggleCompass")) compass.style("display", "block");
-  if (layerIsOn("toggleTemp")) drawTemp();
-  if (layerIsOn("togglePrec")) drawPrec();
-  if (layerIsOn("togglePopulation")) drawPopulation();
-  if (layerIsOn("toggleBiomes")) drawBiomes();
-  if (layerIsOn("toggleRelief")) ReliefIcons();
-  if (layerIsOn("toggleCultures")) drawCultures();
-  if (layerIsOn("toggleProvinces")) drawProvinces();
-  if (layerIsOn("toggleReligions")) drawReligions();
-  if (layerIsOn("toggleIce")) drawIce();
-  if (layerIsOn("toggleEmblems")) drawEmblems();
-  if (layerIsOn("toggleMarkers")) drawMarkers();
+  if (layerIsOn("toggleTemp")) renderLayer("temperature");
+  if (layerIsOn("togglePrec")) renderLayer("precipitation");
+  if (layerIsOn("togglePopulation")) renderLayer("population");
+  if (layerIsOn("toggleBiomes")) renderLayer("biomes");
+  if (layerIsOn("toggleRelief")) window.ReliefIcons();
+  if (layerIsOn("toggleCultures")) renderLayer("cultures");
+  if (layerIsOn("toggleProvinces")) renderLayer("provinces");
+  if (layerIsOn("toggleReligions")) renderLayer("religions");
+  if (layerIsOn("toggleIce")) renderLayer("ice");
+  if (layerIsOn("toggleEmblems")) renderLayer("emblems");
+  if (layerIsOn("toggleMarkers")) renderLayer("markers");
 
   // some layers are rendered each time, remove them if they are not on
   if (!layerIsOn("toggleBorders")) borders.selectAll("path").remove();
@@ -227,21 +234,21 @@ export function restoreLayers() {
 }
 
 export function updatePresetInput() {
-  const $toggledOnLayers = byId("mapLayers").querySelectorAll("li:not(.buttonoff)");
-  const currentLayers = Array.from($toggledOnLayers)
+  const $toggledOnLayers = byId("mapLayers")?.querySelectorAll("li:not(.buttonoff)");
+  const currentLayers = Array.from($toggledOnLayers || [])
     .map(node => node.id)
     .sort();
 
   for (const preset in presets) {
     if (JSON.stringify(presets[preset].sort()) !== JSON.stringify(currentLayers)) continue;
 
-    byId("layersPreset").value = preset;
-    byId("removePresetButton").style.display = defaultPresets[preset] ? "none" : "inline-block";
-    byId("savePresetButton").style.display = "none";
+    setInputValue("layersPreset", preset);
+    byId("removePresetButton")!.style.display = preset in defaultPresets ? "none" : "inline-block";
+    byId("savePresetButton")!.style.display = "none";
     return;
   }
 
-  byId("layersPreset").value = "custom";
-  byId("removePresetButton").style.display = "none";
-  byId("savePresetButton").style.display = "inline-block";
+  setInputValue("layersPreset", "custom");
+  byId("removePresetButton")!.style.display = "none";
+  byId("savePresetButton")!.style.display = "inline-block";
 }
diff --git a/src/layers/renderers/index.js b/src/layers/renderers/index.ts
similarity index 95%
rename from src/layers/renderers/index.js
rename to src/layers/renderers/index.ts
index d85b1567..6ddd94a0 100644
--- a/src/layers/renderers/index.js
+++ b/src/layers/renderers/index.ts
@@ -38,7 +38,7 @@ const layerRenderersMap = {
   temperature: drawTemperature
 };
 
-export function renderLayer(layerName) {
+export function renderLayer(layerName: keyof typeof layerRenderersMap) {
   const rendered = layerRenderersMap[layerName];
   TIME && console.time(rendered.name);
   rendered();
diff --git a/src/layers/toggles.js b/src/layers/toggles.ts
similarity index 64%
rename from src/layers/toggles.js
rename to src/layers/toggles.ts
index b9730dde..543f20c1 100644
--- a/src/layers/toggles.js
+++ b/src/layers/toggles.ts
@@ -1,8 +1,11 @@
 import {tip} from "scripts/tooltips";
 import {getBase64} from "utils/functionUtils";
-import {isCtrlClick} from "utils/keyboardUtils";
+import {isCtrlPressed} from "utils/keyboardUtils";
+// @ts-expect-error js module
+import {editStyle, calculateFriendlyGridSize, shiftCompass} from "modules/ui/style";
 import {turnLayerButtonOn, turnLayerButtonOff, layerIsOn} from "./utils";
 import {renderLayer} from "./renderers";
+import {getInputNumber, getInputValue} from "utils/nodeUtils";
 
 const layerTogglesMap = {
   toggleBiomes,
@@ -34,11 +37,19 @@ const layerTogglesMap = {
   toggleZones
 };
 
-export function toggleLayer(toggleId) {
+type TLayerToggle = keyof typeof layerTogglesMap;
+
+export function toggleLayer(toggleId: TLayerToggle) {
   layerTogglesMap[toggleId]();
 }
 
-function toggleHeight(event) {
+export function toggleLayerOnClick(event: Event) {
+  const targetId = (event.target as HTMLButtonElement)?.id;
+  if (!targetId || targetId === "mapLayers" || !(targetId in layerTogglesMap)) return;
+  layerTogglesMap[targetId as TLayerToggle](event as MouseEvent);
+}
+
+function toggleHeight(event?: MouseEvent) {
   if (customization === 1) {
     tip("You cannot turn off the layer when heightmap is in edit mode", false, "error");
     return;
@@ -47,9 +58,9 @@ function toggleHeight(event) {
   if (!terrs.selectAll("*").size()) {
     turnLayerButtonOn("toggleHeight");
     renderLayer("heightmap");
-    if (event && isCtrlClick(event)) editStyle("terrs");
+    if (isCtrlPressed(event)) editStyle("terrs");
   } else {
-    if (event && isCtrlClick(event)) {
+    if (isCtrlPressed(event)) {
       editStyle("terrs");
       return;
     }
@@ -58,13 +69,13 @@ function toggleHeight(event) {
   }
 }
 
-function toggleTemp(event) {
+function toggleTemp(event?: MouseEvent) {
   if (!temperature.selectAll("*").size()) {
     turnLayerButtonOn("toggleTemp");
     renderLayer("temperature");
-    if (event && isCtrlClick(event)) editStyle("temperature");
+    if (isCtrlPressed(event)) editStyle("temperature");
   } else {
-    if (event && isCtrlClick(event)) {
+    if (isCtrlPressed(event)) {
       editStyle("temperature");
       return;
     }
@@ -73,13 +84,13 @@ function toggleTemp(event) {
   }
 }
 
-function toggleBiomes(event) {
+function toggleBiomes(event?: MouseEvent) {
   if (!biomes.selectAll("path").size()) {
     turnLayerButtonOn("toggleBiomes");
     renderLayer("biomes");
-    if (event && isCtrlClick(event)) editStyle("biomes");
+    if (isCtrlPressed(event)) editStyle("biomes");
   } else {
-    if (event && isCtrlClick(event)) {
+    if (isCtrlPressed(event)) {
       editStyle("biomes");
       return;
     }
@@ -88,13 +99,13 @@ function toggleBiomes(event) {
   }
 }
 
-function togglePrec(event) {
+function togglePrec(event?: MouseEvent) {
   if (!prec.selectAll("circle").size()) {
     turnLayerButtonOn("togglePrec");
     renderLayer("precipitation");
-    if (event && isCtrlClick(event)) editStyle("prec");
+    if (isCtrlPressed(event)) editStyle("prec");
   } else {
-    if (event && isCtrlClick(event)) {
+    if (isCtrlPressed(event)) {
       editStyle("prec");
       return;
     }
@@ -106,13 +117,13 @@ function togglePrec(event) {
   }
 }
 
-function togglePopulation(event) {
+function togglePopulation(event?: MouseEvent) {
   if (!population.selectAll("line").size()) {
     turnLayerButtonOn("togglePopulation");
     renderLayer("population");
-    if (event && isCtrlClick(event)) editStyle("population");
+    if (isCtrlPressed(event)) editStyle("population");
   } else {
-    if (event && isCtrlClick(event)) {
+    if (isCtrlPressed(event)) {
       editStyle("population");
       return;
     }
@@ -141,13 +152,13 @@ function togglePopulation(event) {
   }
 }
 
-function toggleCells(event) {
+function toggleCells(event?: MouseEvent) {
   if (!cells.selectAll("path").size()) {
     turnLayerButtonOn("toggleCells");
     renderLayer("cells");
-    if (event && isCtrlClick(event)) editStyle("cells");
+    if (isCtrlPressed(event)) editStyle("cells");
   } else {
-    if (event && isCtrlClick(event)) {
+    if (isCtrlPressed(event)) {
       editStyle("cells");
       return;
     }
@@ -156,14 +167,14 @@ function toggleCells(event) {
   }
 }
 
-function toggleIce(event) {
+function toggleIce(event?: MouseEvent) {
   if (!layerIsOn("toggleIce")) {
     turnLayerButtonOn("toggleIce");
     $("#ice").fadeIn();
     if (!ice.selectAll("*").size()) renderLayer("ice");
-    if (event && isCtrlClick(event)) editStyle("ice");
+    if (isCtrlPressed(event)) editStyle("ice");
   } else {
-    if (event && isCtrlClick(event)) {
+    if (isCtrlPressed(event)) {
       editStyle("ice");
       return;
     }
@@ -172,15 +183,15 @@ function toggleIce(event) {
   }
 }
 
-function toggleCultures(event) {
-  const cultures = pack.cultures.filter(c => c.i && !c.removed);
+function toggleCultures(event?: MouseEvent) {
+  const cultures = pack.cultures.filter(({i, removed}) => i && !removed);
   const empty = !cults.selectAll("path").size();
   if (empty && cultures.length) {
     turnLayerButtonOn("toggleCultures");
     renderLayer("cultures");
-    if (event && isCtrlClick(event)) editStyle("cults");
+    if (isCtrlPressed(event)) editStyle("cults");
   } else {
-    if (event && isCtrlClick(event)) {
+    if (isCtrlPressed(event)) {
       editStyle("cults");
       return;
     }
@@ -189,14 +200,14 @@ function toggleCultures(event) {
   }
 }
 
-function toggleReligions(event) {
-  const religions = pack.religions.filter(r => r.i && !r.removed);
+function toggleReligions(event?: MouseEvent) {
+  const religions = pack.religions.filter(({i, removed}) => i && !removed);
   if (!relig.selectAll("path").size() && religions.length) {
     turnLayerButtonOn("toggleReligions");
     renderLayer("religions");
-    if (event && isCtrlClick(event)) editStyle("relig");
+    if (isCtrlPressed(event)) editStyle("relig");
   } else {
-    if (event && isCtrlClick(event)) {
+    if (isCtrlPressed(event)) {
       editStyle("relig");
       return;
     }
@@ -205,14 +216,14 @@ function toggleReligions(event) {
   }
 }
 
-function toggleStates(event) {
+function toggleStates(event?: MouseEvent) {
   if (!layerIsOn("toggleStates")) {
     turnLayerButtonOn("toggleStates");
     regions.style("display", null);
     renderLayer("states");
-    if (event && isCtrlClick(event)) editStyle("regions");
+    if (isCtrlPressed(event)) editStyle("regions");
   } else {
-    if (event && isCtrlClick(event)) {
+    if (isCtrlPressed(event)) {
       editStyle("regions");
       return;
     }
@@ -221,13 +232,13 @@ function toggleStates(event) {
   }
 }
 
-function toggleBorders(event) {
+function toggleBorders(event?: MouseEvent) {
   if (!layerIsOn("toggleBorders")) {
     turnLayerButtonOn("toggleBorders");
     renderLayer("borders");
-    if (event && isCtrlClick(event)) editStyle("borders");
+    if (isCtrlPressed(event)) editStyle("borders");
   } else {
-    if (event && isCtrlClick(event)) {
+    if (isCtrlPressed(event)) {
       editStyle("borders");
       return;
     }
@@ -236,13 +247,13 @@ function toggleBorders(event) {
   }
 }
 
-function toggleProvinces(event) {
+function toggleProvinces(event?: MouseEvent) {
   if (!layerIsOn("toggleProvinces")) {
     turnLayerButtonOn("toggleProvinces");
     renderLayer("provinces");
-    if (event && isCtrlClick(event)) editStyle("provs");
+    if (isCtrlPressed(event)) editStyle("provs");
   } else {
-    if (event && isCtrlClick(event)) {
+    if (isCtrlPressed(event)) {
       editStyle("provs");
       return;
     }
@@ -251,15 +262,15 @@ function toggleProvinces(event) {
   }
 }
 
-function toggleGrid(event) {
+function toggleGrid(event?: MouseEvent) {
   if (!gridOverlay.selectAll("*").size()) {
     turnLayerButtonOn("toggleGrid");
     renderLayer("grid");
     calculateFriendlyGridSize();
 
-    if (event && isCtrlClick(event)) editStyle("gridOverlay");
+    if (isCtrlPressed(event)) editStyle("gridOverlay");
   } else {
-    if (event && isCtrlClick(event)) {
+    if (isCtrlPressed(event)) {
       editStyle("gridOverlay");
       return;
     }
@@ -268,13 +279,13 @@ function toggleGrid(event) {
   }
 }
 
-function toggleCoordinates(event) {
+function toggleCoordinates(event?: MouseEvent) {
   if (!coordinates.selectAll("*").size()) {
     turnLayerButtonOn("toggleCoordinates");
     renderLayer("coordinates");
-    if (event && isCtrlClick(event)) editStyle("coordinates");
+    if (isCtrlPressed(event)) editStyle("coordinates");
   } else {
-    if (event && isCtrlClick(event)) {
+    if (isCtrlPressed(event)) {
       editStyle("coordinates");
       return;
     }
@@ -283,7 +294,7 @@ function toggleCoordinates(event) {
   }
 }
 
-function toggleCompass(event) {
+function toggleCompass(event?: MouseEvent) {
   if (!layerIsOn("toggleCompass")) {
     turnLayerButtonOn("toggleCompass");
     $("#compass").fadeIn();
@@ -291,9 +302,9 @@ function toggleCompass(event) {
       compass.append("use").attr("xlink:href", "#rose");
       shiftCompass();
     }
-    if (event && isCtrlClick(event)) editStyle("compass");
+    if (isCtrlPressed(event)) editStyle("compass");
   } else {
-    if (event && isCtrlClick(event)) {
+    if (isCtrlPressed(event)) {
       editStyle("compass");
       return;
     }
@@ -302,14 +313,14 @@ function toggleCompass(event) {
   }
 }
 
-function toggleRelief(event) {
+function toggleRelief(event?: MouseEvent) {
   if (!layerIsOn("toggleRelief")) {
     turnLayerButtonOn("toggleRelief");
-    if (!terrain.selectAll("*").size()) ReliefIcons();
+    if (!terrain.selectAll("*").size()) window.ReliefIcons();
     $("#terrain").fadeIn();
-    if (event && isCtrlClick(event)) editStyle("terrain");
+    if (isCtrlPressed(event)) editStyle("terrain");
   } else {
-    if (event && isCtrlClick(event)) {
+    if (isCtrlPressed(event)) {
       editStyle("terrain");
       return;
     }
@@ -318,13 +329,14 @@ function toggleRelief(event) {
   }
 }
 
-function toggleTexture(event) {
+function toggleTexture(event?: MouseEvent) {
   if (!layerIsOn("toggleTexture")) {
     turnLayerButtonOn("toggleTexture");
     // append default texture image selected by default. Don't append on load to not harm performance
     if (!texture.selectAll("*").size()) {
-      const x = +styleTextureShiftX.value;
-      const y = +styleTextureShiftY.value;
+      const x = getInputNumber("styleTextureShiftX");
+      const y = getInputNumber("styleTextureShiftY");
+
       const image = texture
         .append("image")
         .attr("id", "textureImage")
@@ -333,37 +345,37 @@ function toggleTexture(event) {
         .attr("width", graphWidth - x)
         .attr("height", graphHeight - y)
         .attr("preserveAspectRatio", "xMidYMid slice");
-      getBase64(styleTextureInput.value, base64 => image.attr("xlink:href", base64));
+      getBase64(getInputValue("styleTextureInput"), base64 => image.attr("xlink:href", base64));
     }
     $("#texture").fadeIn();
-    zoom.scaleBy(svg, 1.00001); // enforce browser re-draw
-    if (event && isCtrlClick(event)) editStyle("texture");
+    window.Zoom.force;
+    if (isCtrlPressed(event)) editStyle("texture");
   } else {
-    if (event && isCtrlClick(event)) return editStyle("texture");
+    if (isCtrlPressed(event)) return editStyle("texture");
     $("#texture").fadeOut();
     turnLayerButtonOff("toggleTexture");
   }
 }
 
-function toggleRivers(event) {
+function toggleRivers(event?: MouseEvent) {
   if (!layerIsOn("toggleRivers")) {
     turnLayerButtonOn("toggleRivers");
     renderLayer("rivers");
-    if (event && isCtrlClick(event)) editStyle("rivers");
+    if (isCtrlPressed(event)) editStyle("rivers");
   } else {
-    if (event && isCtrlClick(event)) return editStyle("rivers");
+    if (isCtrlPressed(event)) return editStyle("rivers");
     rivers.selectAll("*").remove();
     turnLayerButtonOff("toggleRivers");
   }
 }
 
-function toggleRoutes(event) {
+function toggleRoutes(event?: MouseEvent) {
   if (!layerIsOn("toggleRoutes")) {
     turnLayerButtonOn("toggleRoutes");
     $("#routes").fadeIn();
-    if (event && isCtrlClick(event)) editStyle("routes");
+    if (isCtrlPressed(event)) editStyle("routes");
   } else {
-    if (event && isCtrlClick(event)) {
+    if (isCtrlPressed(event)) {
       editStyle("routes");
       return;
     }
@@ -372,13 +384,13 @@ function toggleRoutes(event) {
   }
 }
 
-function toggleMilitary(event) {
+function toggleMilitary(event?: MouseEvent) {
   if (!layerIsOn("toggleMilitary")) {
     turnLayerButtonOn("toggleMilitary");
     $("#armies").fadeIn();
-    if (event && isCtrlClick(event)) editStyle("armies");
+    if (isCtrlPressed(event)) editStyle("armies");
   } else {
-    if (event && isCtrlClick(event)) {
+    if (isCtrlPressed(event)) {
       editStyle("armies");
       return;
     }
@@ -387,26 +399,26 @@ function toggleMilitary(event) {
   }
 }
 
-function toggleMarkers(event) {
+function toggleMarkers(event?: MouseEvent) {
   if (!layerIsOn("toggleMarkers")) {
     turnLayerButtonOn("toggleMarkers");
     renderLayer("markers");
-    if (event && isCtrlClick(event)) editStyle("markers");
+    if (isCtrlPressed(event)) editStyle("markers");
   } else {
-    if (event && isCtrlClick(event)) return editStyle("markers");
+    if (isCtrlPressed(event)) return editStyle("markers");
     markers.selectAll("*").remove();
     turnLayerButtonOff("toggleMarkers");
   }
 }
 
-function toggleLabels(event) {
+function toggleLabels(event?: MouseEvent) {
   if (!layerIsOn("toggleLabels")) {
     turnLayerButtonOn("toggleLabels");
     labels.style("display", null);
-    Zoom.invoke();
-    if (event && isCtrlClick(event)) editStyle("labels");
+    window.Zoom.invoke();
+    if (isCtrlPressed(event)) editStyle("labels");
   } else {
-    if (event && isCtrlClick(event)) {
+    if (isCtrlPressed(event)) {
       editStyle("labels");
       return;
     }
@@ -415,13 +427,13 @@ function toggleLabels(event) {
   }
 }
 
-function toggleIcons(event) {
+function toggleIcons(event?: MouseEvent) {
   if (!layerIsOn("toggleIcons")) {
     turnLayerButtonOn("toggleIcons");
     $("#icons").fadeIn();
-    if (event && isCtrlClick(event)) editStyle("burgIcons");
+    if (isCtrlPressed(event)) editStyle("burgIcons");
   } else {
-    if (event && isCtrlClick(event)) {
+    if (isCtrlPressed(event)) {
       editStyle("burgIcons");
       return;
     }
@@ -430,14 +442,14 @@ function toggleIcons(event) {
   }
 }
 
-function toggleRulers(event) {
+function toggleRulers(event?: MouseEvent) {
   if (!layerIsOn("toggleRulers")) {
     turnLayerButtonOn("toggleRulers");
-    if (event && isCtrlClick(event)) editStyle("ruler");
+    if (isCtrlPressed(event)) editStyle("ruler");
     rulers.draw();
     ruler.style("display", null);
   } else {
-    if (event && isCtrlClick(event)) {
+    if (isCtrlPressed(event)) {
       editStyle("ruler");
       return;
     }
@@ -447,28 +459,33 @@ function toggleRulers(event) {
   }
 }
 
-function toggleScaleBar(event) {
+function toggleScaleBar(event?: MouseEvent) {
   if (!layerIsOn("toggleScaleBar")) {
     turnLayerButtonOn("toggleScaleBar");
     $("#scaleBar").fadeIn();
-    if (event && isCtrlClick(event)) editUnits();
+    if (isCtrlPressed(event)) openUnitsEditor();
   } else {
-    if (event && isCtrlClick(event)) {
-      editUnits();
-      return;
+    if (isCtrlPressed(event)) openUnitsEditor();
+    else {
+      $("#scaleBar").fadeOut();
+      turnLayerButtonOff("toggleScaleBar");
     }
-    $("#scaleBar").fadeOut();
-    turnLayerButtonOff("toggleScaleBar");
+  }
+
+  async function openUnitsEditor() {
+    // @ts-ignore fix dynamic import
+    const {editUnits} = await import("./../modules/ui/unitsEditor.js");
+    editUnits();
   }
 }
 
-function toggleZones(event) {
+function toggleZones(event?: MouseEvent) {
   if (!layerIsOn("toggleZones")) {
     turnLayerButtonOn("toggleZones");
     $("#zones").fadeIn();
-    if (event && isCtrlClick(event)) editStyle("zones");
+    if (isCtrlPressed(event)) editStyle("zones");
   } else {
-    if (event && isCtrlClick(event)) {
+    if (isCtrlPressed(event)) {
       editStyle("zones");
       return;
     }
@@ -477,14 +494,14 @@ function toggleZones(event) {
   }
 }
 
-function toggleEmblems(event) {
+function toggleEmblems(event?: MouseEvent) {
   if (!layerIsOn("toggleEmblems")) {
     turnLayerButtonOn("toggleEmblems");
     if (!emblems.selectAll("use").size()) renderLayer("emblems");
     $("#emblems").fadeIn();
-    if (event && isCtrlClick(event)) editStyle("emblems");
+    if (isCtrlPressed(event)) editStyle("emblems");
   } else {
-    if (event && isCtrlClick(event)) {
+    if (isCtrlPressed(event)) {
       editStyle("emblems");
       return;
     }
diff --git a/src/modules/ui/style.js b/src/modules/ui/style.js
index 9e8355a3..ab7985e0 100644
--- a/src/modules/ui/style.js
+++ b/src/modules/ui/style.js
@@ -24,7 +24,7 @@ styleElements.addEventListener("change", function (ev) {
 });
 
 // select element to be edited
-function editStyle(element, group) {
+export function editStyle(element, group) {
   showOptions();
   styleTab.click();
   styleElementSelect.value = element;
@@ -403,7 +403,7 @@ styleGridScale.addEventListener("input", function () {
   calculateFriendlyGridSize();
 });
 
-function calculateFriendlyGridSize() {
+export function calculateFriendlyGridSize() {
   const size = styleGridScale.value * 25;
   const friendly = `${rn(size * distanceScaleInput.value, 2)} ${distanceUnitInput.value}`;
   styleGridSizeFriendly.value = friendly;
@@ -537,7 +537,7 @@ styleCompassSizeInput.addEventListener("input", function () {
 styleCompassShiftX.addEventListener("input", shiftCompass);
 styleCompassShiftY.addEventListener("input", shiftCompass);
 
-function shiftCompass() {
+export function shiftCompass() {
   const tr = `translate(${styleCompassShiftX.value} ${styleCompassShiftY.value}) scale(${styleCompassSizeInput.value})`;
   compass.select("use").attr("transform", tr);
 }
diff --git a/src/modules/ui/3d.js b/src/modules/ui/threeD.js
similarity index 100%
rename from src/modules/ui/3d.js
rename to src/modules/ui/threeD.js
diff --git a/src/modules/ui/tools.js b/src/modules/ui/tools.js
index 3ea66a61..c9db8b04 100644
--- a/src/modules/ui/tools.js
+++ b/src/modules/ui/tools.js
@@ -3,7 +3,7 @@ import {findCell} from "utils/graphUtils";
 import {last} from "utils/arrayUtils";
 import {tip, clearMainTip} from "scripts/tooltips";
 import {rn} from "utils/numberUtils";
-import {isCtrlClick} from "utils/keyboardUtils";
+import {isCtrlPressed} from "utils/keyboardUtils";
 import {prompt} from "scripts/prompt";
 import {getNextId} from "utils/nodeUtils";
 import {P, generateSeed} from "utils/probabilityUtils";
@@ -444,7 +444,7 @@ function regenerateMarkers() {
 }
 
 function regenerateZones(event) {
-  if (isCtrlClick(event))
+  if (isCtrlPressed(event))
     prompt("Please provide zones number multiplier", {default: 1, step: 0.01, min: 0, max: 100}, v =>
       addNumberOfZones(v)
     );
diff --git a/src/modules/zoom.js b/src/modules/zoom.js
index eb064207..59fff8eb 100644
--- a/src/modules/zoom.js
+++ b/src/modules/zoom.js
@@ -33,6 +33,10 @@ window.Zoom = (function () {
     invokeActiveZooming();
   }
 
+  function force() {
+    zoom.scaleBy(svg, 1.00001); // enforce browser re-draw;
+  }
+
   // zoom to a specific point
   function to(x, y, z = 8, d = 2000) {
     const transform = d3.zoomIdentity.translate(x * -z + graphWidth / 2, y * -z + graphHeight / 2).scale(z);
@@ -59,5 +63,5 @@ window.Zoom = (function () {
     zoom.scaleTo(element, scale);
   }
 
-  return {setZoomBehavior, invoke, to, reset, scaleExtent, translateExtent, scaleTo};
+  return {setZoomBehavior, invoke, force, to, reset, scaleExtent, translateExtent, scaleTo};
 })();
diff --git a/src/scripts/prompt.ts b/src/scripts/prompt.ts
index 06df1aeb..362d138e 100644
--- a/src/scripts/prompt.ts
+++ b/src/scripts/prompt.ts
@@ -1,5 +1,21 @@
 import {ERROR} from "../config/logging";
 
+interface IPromptStringOptions {
+  default: string;
+  required?: boolean;
+}
+
+interface IPromptNumberOptions {
+  default: number;
+  step?: number;
+  min?: number;
+  max?: number;
+  required?: boolean;
+}
+
+const isNumerical = (options: {default: number | string}): options is IPromptNumberOptions =>
+  typeof options.default === "number";
+
 // prompt replacer (prompt does not work in Electron)
 const $prompt: HTMLElement = document.getElementById("prompt")!;
 const $form: HTMLFormElement = $prompt.querySelector("#promptForm")!;
@@ -10,16 +26,23 @@ const $cancel: HTMLButtonElement = $prompt.querySelector("#promptCancel")!;
 const defaultText = "Please provide an input";
 const defaultOptions = {default: 1, step: 0.01, min: 0, max: 100, required: true};
 
-export function prompt(promptText = defaultText, options = defaultOptions, callback: (value: number | string) => void) {
-  if (options.default === undefined)
-    return ERROR && console.error("Prompt: options object does not have default value defined");
+export function prompt(
+  promptText: string = defaultText,
+  options: IPromptStringOptions | IPromptNumberOptions = defaultOptions,
+  callback?: (value: string | number) => void
+): void {
+  const numerical = isNumerical(options);
+  if (numerical) {
+    $input.type = "number";
+    if (options.step !== undefined) $input.step = String(options.step);
+    if (options.min !== undefined) $input.min = String(options.min);
+    if (options.max !== undefined) $input.max = String(options.max);
+    if (callback) callback("rw");
+  } else {
+    $input.type = "text";
+  }
 
   $text.innerHTML = promptText;
-  $input.type = typeof options.default === "number" ? "number" : "text";
-
-  if (options.step !== undefined) $input.step = String(options.step);
-  if (options.min !== undefined) $input.min = String(options.min);
-  if (options.max !== undefined) $input.max = String(options.max);
 
   $input.required = options.required === false ? false : true;
   $input.placeholder = "type a " + $input.type;
@@ -32,8 +55,15 @@ export function prompt(promptText = defaultText, options = defaultOptions, callb
       event.preventDefault();
       $prompt.style.display = "none";
 
-      const value = $input.type === "number" ? Number($input.value) : $input.value;
-      if (callback) callback(value);
+      if (callback) {
+        if (isNumerical(options)) {
+          const value = Number($input.value);
+          callback(value);
+        } else {
+          const value = $input.value;
+          callback(value);
+        }
+      }
     },
     {once: true}
   );
diff --git a/src/types/globals.d.ts b/src/types/globals.d.ts
index 9f3f7249..30d5093c 100644
--- a/src/types/globals.d.ts
+++ b/src/types/globals.d.ts
@@ -34,16 +34,54 @@ declare let distanceScale: number;
 declare let urbanDensity: number;
 declare let statesNeutral: number;
 
-declare let scaleBar: Selection<HTMLElement>;
-declare let legend: Selection<HTMLElement>;
-
 declare const defineSvg: (graphWidth: number, graphHeight: number) => void;
 
-// old modules
-declare const Biomes: {
-  getDefault: () => IBiomesData;
-};
-
-declare const Names: {
-  getNameBases: () => INamebase[];
-};
+let svg: Selection<SVGGElement>;
+let defs: Selection<SVGDefsElement>;
+let viewbox: Selection<SVGGElement>;
+let scaleBar: Selection<SVGGElement>;
+let legend: Selection<SVGGElement>;
+let ocean: Selection<SVGGElement>;
+let oceanLayers: Selection<SVGGElement>;
+let oceanPattern: Selection<SVGPatternElement>;
+let lakes: Selection<SVGGElement>;
+let landmass: Selection<SVGGElement>;
+let texture: Selection<SVGGElement>;
+let terrs: Selection<SVGGElement>;
+let biomes: Selection<SVGGElement>;
+let cells: Selection<SVGGElement>;
+let gridOverlay: Selection<SVGGElement>;
+let coordinates: Selection<SVGGElement>;
+let compass: Selection<SVGGElement>;
+let rivers: Selection<SVGGElement>;
+let terrain: Selection<SVGGElement>;
+let relig: Selection<SVGGElement>;
+let cults: Selection<SVGGElement>;
+let regions: Selection<SVGGElement>;
+let statesBody: Selection<SVGGElement>;
+let statesHalo: Selection<SVGGElement>;
+let provs: Selection<SVGGElement>;
+let zones: Selection<SVGGElement>;
+let borders: Selection<SVGGElement>;
+let stateBorders: Selection<SVGGElement>;
+let provinceBorders: Selection<SVGGElement>;
+let routes: Selection<SVGGElement>;
+let roads: Selection<SVGGElement>;
+let trails: Selection<SVGGElement>;
+let searoutes: Selection<SVGGElement>;
+let temperature: Selection<SVGGElement>;
+let coastline: Selection<SVGGElement>;
+let ice: Selection<SVGGElement>;
+let prec: Selection<SVGGElement>;
+let population: Selection<SVGGElement>;
+let emblems: Selection<SVGGElement>;
+let labels: Selection<SVGGElement>;
+let icons: Selection<SVGGElement>;
+let burgLabels: Selection<SVGGElement>;
+let burgIcons: Selection<SVGGElement>;
+let anchors: Selection<SVGGElement>;
+let armies: Selection<SVGGElement>;
+let markers: Selection<SVGGElement>;
+let fogging: Selection<SVGGElement>;
+let ruler: Selection<SVGGElement>;
+let debug: Selection<SVGGElement>;
diff --git a/src/types/overrides.d.ts b/src/types/overrides.d.ts
index 1a00cca7..231de2a4 100644
--- a/src/types/overrides.d.ts
+++ b/src/types/overrides.d.ts
@@ -10,9 +10,15 @@ interface Window {
       [key: string]: boolean;
     };
   };
-  d3: typeof d3;
-  $: typeof $;
   mapCoordinates: IMapCoordinates;
+  // untyped IIFE modules
+  $: typeof $;
+  d3: typeof d3;
+  Biomes: typeof Biomes;
+  Names: typeof Names;
+  ThreeD: typeof ThreeD;
+  ReliefIcons: typeof ReliefIcons;
+  Zoom: typeof Zoom;
 }
 
 interface Node {
diff --git a/src/types/pack.d.ts b/src/types/pack.d.ts
index ea522f30..9fdd34cd 100644
--- a/src/types/pack.d.ts
+++ b/src/types/pack.d.ts
@@ -6,11 +6,29 @@ interface IPack {
     pop: number[];
     burg: number[];
   };
-  states: [];
-  cultures: [];
-  provinces: [];
+  states: IState[];
+  cultures: ICulture[];
+  provinces: IProvince[];
   burgs: IBurg[];
-  religions: [];
+  religions: IReligion[];
+}
+
+interface IState {
+  i: number;
+  name: string;
+  removed?: boolean;
+}
+
+interface ICulture {
+  i: number;
+  name: string;
+  removed?: boolean;
+}
+
+interface IProvince {
+  i: number;
+  name: string;
+  removed?: boolean;
 }
 
 interface IBurg {
@@ -20,4 +38,11 @@ interface IBurg {
   x: number;
   y: number;
   population: number;
+  removed?: boolean;
+}
+
+interface IReligion {
+  i: number;
+  name: string;
+  removed?: boolean;
 }
diff --git a/src/utils/keyboardUtils.ts b/src/utils/keyboardUtils.ts
index cadd4a5c..f4503c6a 100644
--- a/src/utils/keyboardUtils.ts
+++ b/src/utils/keyboardUtils.ts
@@ -1,3 +1,3 @@
-export function isCtrlClick(event: MouseEvent) {
-  return event.ctrlKey || event.metaKey;
+export function isCtrlPressed(event?: MouseEvent) {
+  return event && (event.ctrlKey || event.metaKey);
 }
diff --git a/src/utils/nodeUtils.ts b/src/utils/nodeUtils.ts
index c927ea17..27ffed0e 100644
--- a/src/utils/nodeUtils.ts
+++ b/src/utils/nodeUtils.ts
@@ -7,13 +7,29 @@ export function getNextId(core: string, index = 1) {
 }
 
 export function getInputValue(id: string) {
+  const $element = byId(id);
+  if (!$element) throw new Error(`Element ${id} not found`);
+  if (!("value" in $element)) throw new Error(`Element ${id} is not an input`);
+
   return (byId(id) as HTMLInputElement)?.value;
 }
 
 export function getInputNumber(id: string) {
+  const $element = byId(id);
+  if (!$element) throw new Error(`Element ${id} not found`);
+  if (!("value" in $element)) throw new Error(`Element ${id} is not an input`);
+
   return (byId(id) as HTMLInputElement)?.valueAsNumber;
 }
 
+export function setInputValue(id: string, value: string | number | boolean) {
+  const $element = byId(id);
+  if (!$element) throw new Error(`Element ${id} not found`);
+  if (!("value" in $element)) throw new Error(`Element ${id} is not an input`);
+
+  ($element as HTMLInputElement).value = String(value);
+}
+
 // apply drop-down menu option. If the value is not in options, add it
 export function applyDropdownOption($select: HTMLSelectElement, value: string, name = value) {
   const isExisting = Array.from($select.options).some(o => o.value === value);