Add override-all option to layers

Customizations/AllKnownLayers.ts

@@ -1,5 +1,4 @@
 import LayerConfig from "./JSON/LayerConfig";
-import {LayerConfigJson} from "./JSON/LayerConfigJson";
 import * as known_layers from "../assets/generated/known_layers_and_themes.json"
 import {Utils} from "../Utils";
 
@@ -9,7 +8,6 @@ export default class AllKnownLayers {
     // Must be below the list...
     public static sharedLayers: Map<string, LayerConfig> = AllKnownLayers.getSharedLayers();
     public static sharedLayersJson: Map<string, any> = AllKnownLayers.getSharedLayersJson();
-    private static sharedLayersListRaw: LayerConfigJson[] = known_layers.layers;
 
     private static getSharedLayers(): Map<string, LayerConfig> {
         const sharedLayers = new Map<string, LayerConfig>();

Customizations/JSON/LayoutConfig.ts

@@ -93,8 +93,13 @@ export default class LayoutConfig {
         this.defaultBackgroundId = json.defaultBackgroundId;
         this.layers = json.layers.map((layer, i) => {
             if (typeof layer === "string") {
-                if (AllKnownLayers.sharedLayers[layer] !== undefined) {
+                if (AllKnownLayers.sharedLayersJson[layer] !== undefined) {
-                    return AllKnownLayers.sharedLayers[layer];
+                    if(json.overrideAll !== undefined){
+                        let lyr = JSON.parse(JSON.stringify( AllKnownLayers.sharedLayersJson[layer]));
+                        return new LayerConfig(Utils.Merge(json.overrideAll, lyr),`${this.id}+overrideAll.layers[${i}]`, official);
+                    }else{
+                        return AllKnownLayers.sharedLayers[layer]
+                    }
                 } else {
                     throw "Unkown fixed layer " + layer;
                 }
@@ -109,6 +114,11 @@ export default class LayoutConfig {
                 }
                 // @ts-ignore
                 layer = Utils.Merge(layer.override, JSON.parse(JSON.stringify(shared))); // We make a deep copy of the shared layer, in order to protect it from changes
+              
+          
+            }
+            if(json.overrideAll !== undefined){
+                layer = Utils.Merge(json.overrideAll, layer);
             }
       
             // @ts-ignore
@@ -140,10 +150,11 @@ export default class LayoutConfig {
             );
         }
 
-        this.clustering = {
+        const defaultClustering = {
             maxZoom: 16,
-            minNeededElements: 250
+            minNeededElements: 500
         };
+        this.clustering = defaultClustering;
         if (json.clustering) {
             this.clustering = {
                 maxZoom: json.clustering.maxZoom ?? 18,

Customizations/JSON/LayoutConfigJson.ts

@@ -114,6 +114,11 @@ export interface LayoutConfigJson {
      */
     roamingRenderings?: (TagRenderingConfigJson | string)[],
 
+    /**
+     * An override applied on all layers of the theme
+     */
+    overrideAll?: any;
+    
     /**
      * The id of the default background. BY default: vanilla OSM
      */
@@ -161,6 +166,7 @@ export interface LayoutConfigJson {
 
     /**
      * If defined, data will be clustered.
+     * Defaults to {maxZoom: 16, minNeeded: 500}
      */
     clustering?: {
         /**