diff --git a/public/assets/sunny.json b/public/assets/sunny.json
index 081bd6a6ca..404d6fe7c6 100644
--- a/public/assets/sunny.json
+++ b/public/assets/sunny.json
@@ -68,8 +68,7 @@
       "type": "fill",
       "source": "protomaps",
       "source-layer": "landuse",
-      "filter": [
-        "any",
+      "filter":
         [
           "in",
           "kind",
@@ -78,7 +77,6 @@
           "cemetery",
           "nature_reserve",
           "golf_course"
-        ]
       ],
       "paint": {
         "fill-color": [
diff --git a/src/UI/Map/MapLibreAdaptor.ts b/src/UI/Map/MapLibreAdaptor.ts
index b8ccdb7d34..eeb788ce5b 100644
--- a/src/UI/Map/MapLibreAdaptor.ts
+++ b/src/UI/Map/MapLibreAdaptor.ts
@@ -1,17 +1,11 @@
 import { ImmutableStore, Store, UIEventSource } from "../../Logic/UIEventSource"
-import maplibregl, {
-    Map as MLMap,
-    Map as MlMap,
-    ScaleControl,
-    SourceSpecification,
-} from "maplibre-gl"
+import maplibregl, { Map as MLMap, Map as MlMap, ScaleControl } from "maplibre-gl"
 import { RasterLayerPolygon } from "../../Models/RasterLayers"
 import { Utils } from "../../Utils"
 import { BBox } from "../../Logic/BBox"
 import { ExportableMap, KeyNavigationEvent, MapProperties } from "../../Models/MapProperties"
 import SvelteUIElement from "../Base/SvelteUIElement"
 import MaplibreMap from "./MaplibreMap.svelte"
-import { RasterLayerProperties } from "../../Models/RasterLayerProperties"
 import * as htmltoimage from "html-to-image"
 import RasterLayerHandler from "./RasterLayerHandler"
 import Constants from "../../Models/Constants"
@@ -125,7 +119,6 @@ export class MapLibreAdaptor implements MapProperties, ExportableMap {
             nearestFeature?: Feature
         }>(undefined)
         this.lastClickLocation = lastClickLocation
-        const self = this
 
         new RasterLayerHandler(this._maplibreMap, this.rasterLayer)
 
@@ -294,10 +287,6 @@ export class MapLibreAdaptor implements MapProperties, ExportableMap {
         }
     }
 
-    public static prepareWmsSource(layer: RasterLayerProperties): SourceSpecification {
-        return RasterLayerHandler.prepareSource(layer)
-    }
-
     /**
      * Prepares an ELI-URL to be compatible with mapbox
      */
diff --git a/src/UI/Map/RasterLayerHandler.ts b/src/UI/Map/RasterLayerHandler.ts
index a69f1494ca..e29ad5eded 100644
--- a/src/UI/Map/RasterLayerHandler.ts
+++ b/src/UI/Map/RasterLayerHandler.ts
@@ -1,4 +1,4 @@
-import { Map as MLMap, RasterSourceSpecification, VectorTileSource } from "maplibre-gl"
+import { Map as MLMap, RasterSourceSpecification } from "maplibre-gl"
 import { Store, Stores, UIEventSource } from "../../Logic/UIEventSource"
 import { RasterLayerPolygon } from "../../Models/RasterLayers"
 import { RasterLayerProperties } from "../../Models/RasterLayerProperties"
@@ -144,8 +144,8 @@ class SingleBackgroundHandler {
                         type: "raster",
                         source: background.id,
                         paint: {
-                            "raster-opacity": 0,
-                        },
+                            "raster-opacity": 0
+                        }
                     },
                     addLayerBeforeId
                 )
@@ -166,14 +166,14 @@ class SingleBackgroundHandler {
         Stores.Chronic(
             8,
             () => this.opacity.data > 0 && this._deactivationTime !== undefined
-        ).addCallback((_) => this.opacity.setData(Math.max(0, this.opacity.data - this.fadeStep)))
+        ).addCallback(() => this.opacity.setData(Math.max(0, this.opacity.data - this.fadeStep)))
     }
 
     private fadeIn() {
         Stores.Chronic(
             8,
             () => this.opacity.data < 1.0 && this._deactivationTime === undefined
-        ).addCallback((_) => this.opacity.setData(Math.min(1.0, this.opacity.data + this.fadeStep)))
+        ).addCallback(() => this.opacity.setData(Math.min(1.0, this.opacity.data + this.fadeStep)))
     }
 }
 
@@ -193,11 +193,10 @@ export default class RasterLayerHandler {
         layer: RasterLayerProperties
     ): RasterSourceSpecification | VectorSourceSpecification {
         if (layer.type === "vector") {
-            const vs: VectorSourceSpecification = {
+            return {
                 type: "vector",
-                url: layer.url,
+                url: layer.url
             }
-            return vs
         }
         return {
             type: "raster",
@@ -208,7 +207,7 @@ export default class RasterLayerHandler {
             minzoom: layer["min_zoom"] ?? 1,
             maxzoom: layer["max_zoom"] ?? 25,
             // Bit of a hack, but seems to work
-            scheme: layer.url.includes("{-y}") ? "tms" : "xyz",
+            scheme: layer.url.includes("{-y}") ? "tms" : "xyz"
         }
     }
 
@@ -222,7 +221,7 @@ export default class RasterLayerHandler {
             "{width}": "" + size,
             "{height}": "" + size,
             "{zoom}": "{z}",
-            "{-y}": "{y}",
+            "{-y}": "{y}"
         }
 
         for (const key in toReplace) {
diff --git a/src/UI/Map/ShowOverlayRasterLayer.ts b/src/UI/Map/ShowOverlayRasterLayer.ts
index 3e545ca42f..3d69be8178 100644
--- a/src/UI/Map/ShowOverlayRasterLayer.ts
+++ b/src/UI/Map/ShowOverlayRasterLayer.ts
@@ -1,8 +1,8 @@
 import { Store, UIEventSource } from "../../Logic/UIEventSource"
 import { Map as MlMap } from "maplibre-gl"
 import { Utils } from "../../Utils"
-import { MapLibreAdaptor } from "./MapLibreAdaptor"
 import { RasterLayerProperties } from "../../Models/RasterLayerProperties"
+import RasterLayerHandler from "./RasterLayerHandler"
 
 export default class ShowOverlayRasterLayer {
     private readonly _map: UIEventSource<MlMap>
@@ -42,9 +42,9 @@ export default class ShowOverlayRasterLayer {
     }
 
     private setVisibility() {
-        let zoom = this._mapProperties?.zoom?.data
-        let withinRange = zoom === undefined || zoom > this._layer.min_zoom
-        let isDisplayed = (this._isDisplayed?.data ?? true) && withinRange
+        const zoom = this._mapProperties?.zoom?.data
+        const withinRange = zoom === undefined || zoom > this._layer.min_zoom
+        const isDisplayed = (this._isDisplayed?.data ?? true) && withinRange
         try {
             this._map.data?.setLayoutProperty(
                 this._layer.id,
@@ -78,8 +78,7 @@ export default class ShowOverlayRasterLayer {
             return
         }
         const background: RasterLayerProperties = this._layer
-
-        map.addSource(background.id, MapLibreAdaptor.prepareWmsSource(background))
+        map.addSource(background.id, RasterLayerHandler.prepareSource(background))
         this._mllayer = map.addLayer({
             id: background.id,
             type: "raster",