diff --git a/assets/svg/elevator.svg b/assets/svg/elevator.svg
index ad43fe894..8f6343703 100644
--- a/assets/svg/elevator.svg
+++ b/assets/svg/elevator.svg
@@ -1,78 +1,44 @@
 <?xml version="1.0" encoding="UTF-8" standalone="no"?>
-<!-- Generator: Adobe Illustrator 22.1.0, SVG Export Plug-In . SVG Version: 6.00 Build 0)  -->
-
 <svg
-   version="1.1"
-   id="图层_1"
-   x="0px"
-   y="0px"
-   viewBox="0 0 65.9 66"
-   style="enable-background:new 0 0 65.9 66;"
-   xml:space="preserve"
-   sodipodi:docname="elevator.svg"
-   inkscape:version="1.1.2 (0a00cf5339, 2022-02-04)"
-   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
-   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
-   xmlns="http://www.w3.org/2000/svg"
-   xmlns:svg="http://www.w3.org/2000/svg"><defs
-   id="defs33">
-	
-
-	
-	
-	
-	
-	
-	
-
-		
-		
-		
-		
-		
-	</defs><sodipodi:namedview
-   id="namedview31"
-   pagecolor="#ffffff"
-   bordercolor="#111111"
-   borderopacity="1"
-   inkscape:pageshadow="0"
-   inkscape:pageopacity="0"
-   inkscape:pagecheckerboard="1"
-   showgrid="false"
-   inkscape:zoom="61.063924"
-   inkscape:cx="32.105699"
-   inkscape:cy="40.138265"
-   inkscape:window-width="1920"
-   inkscape:window-height="1007"
-   inkscape:window-x="0"
-   inkscape:window-y="0"
-   inkscape:window-maximized="1"
-   inkscape:current-layer="图层_1" />
-<path
-   d="M 48.2,15.6 H 19.3 c -1.6,0 -2.8,1.3 -2.8,2.8 v 29 c 0,1.6 1.3,2.8 2.8,2.8 h 28.9 c 1.6,0 2.8,-1.3 2.8,-2.8 V 18.5 C 51,17 49.7,15.6 48.2,15.6 Z m 0.3,30.7 c 0,0.8 -0.6,1.4 -1.4,1.4 H 20.4 C 19.6,47.7 19,47.1 19,46.3 V 19.6 c 0,-0.8 0.6,-1.4 1.4,-1.4 h 26.7 c 0.8,0 1.4,0.6 1.4,1.4 z"
-   id="path2" /><polygon
-   points="29.4,9.5 33.7,5.5 38.1,9.5 35.3,9.5 35.3,13.5 32.2,13.5 32.2,9.5 "
-   id="polygon8" /><polygon
-   points="38.1,56.6 33.7,60.5 29.4,56.6 32.2,56.6 32.2,52.5 35.3,52.5 35.3,56.6 "
-   id="polygon10" /><circle
-   cx="28.6"
-   cy="21.4"
-   r="1.9"
-   id="circle12" /><path
-   d="m 29.1,35.6 c 0,-0.2 -0.2,-0.5 -0.5,-0.5 -0.3,0 -0.5,0.2 -0.5,0.5 v 1.7 3 5 c 0,0.6 -0.6,1.2 -1.2,1.2 -0.6,0 -1.2,-0.5 -1.2,-1.2 V 40.5 37.3 33.2 32 28.2 28.3 c 0,-0.2 -0.1,-0.4 -0.4,-0.4 -0.2,0 -0.4,0.2 -0.4,0.4 v 1.3 3.5 1.8 c 0,0.4 -0.3,0.7 -0.7,0.7 -0.4,0 -0.7,-0.3 -0.7,-0.7 v -1 -3.5 -4.2 c 0,-1 0.8,-1.9 1.9,-1.9 h 5.2 0.3 c 0.2,0 0.5,0.1 0.6,0.3 l 2.1,2.1 2.5,-2.5 c 0.4,-0.4 1,-0.4 1.3,0 0.4,0.4 0.4,1 0,1.3 l -3.2,3.2 C 34,28.9 33.8,29 33.5,29 33.3,29 33,28.9 32.8,28.7 L 32,27.9 31.8,27.8 h -0.2 c -0.2,0 -0.4,0.2 -0.4,0.4 v 1.6 10.6 l 7.68e-4,4.906766 c 9.4e-5,0.6 -0.6,1.2 -1.2,1.2 -0.6,0 -0.957071,-0.484801 -0.957071,-1.184801 0,0 0.0563,-6.496244 0.0563,-9.721965 z"
-   id="path14"
-   sodipodi:nodetypes="cssccsssccccccssccsssccsscsccsccsssccssccsscc" /><circle
-   cx="42.400002"
-   cy="21"
-   r="1.5"
-   id="circle16" /><circle
-   cx="42.400002"
-   cy="24.5"
-   r="1.5"
-   id="circle18" /><circle
-   cx="42.400002"
-   cy="28.200001"
-   r="1.5"
-   id="circle20" />
-
+        version="1.1"
+        id="elevator"
+        x="0px"
+        y="0px"
+        viewBox="0 0 65.9 66"
+        style="enable-background:new 0 0 65.9 66;"
+        xml:space="preserve"
+        xmlns="http://www.w3.org/2000/svg">
+    <path
+            d="M 48.2,15.6 H 19.3 c -1.6,0 -2.8,1.3 -2.8,2.8 v 29 c 0,1.6 1.3,2.8 2.8,2.8 h 28.9 c 1.6,0 2.8,-1.3 2.8,-2.8 V 18.5 C 51,17 49.7,15.6 48.2,15.6 Z m 0.3,30.7 c 0,0.8 -0.6,1.4 -1.4,1.4 H 20.4 C 19.6,47.7 19,47.1 19,46.3 V 19.6 c 0,-0.8 0.6,-1.4 1.4,-1.4 h 26.7 c 0.8,0 1.4,0.6 1.4,1.4 z"
+            id="path2"/>
+    <polygon
+            points="29.4,9.5 33.7,5.5 38.1,9.5 35.3,9.5 35.3,13.5 32.2,13.5 32.2,9.5 "
+            id="polygon8"/>
+    <polygon
+            points="38.1,56.6 33.7,60.5 29.4,56.6 32.2,56.6 32.2,52.5 35.3,52.5 35.3,56.6 "
+            id="polygon10"/>
+    <circle
+            cx="28.6"
+            cy="21.4"
+            r="1.9"
+            id="circle12"/>
+    <path
+            d="m 29.1,35.6 c 0,-0.2 -0.2,-0.5 -0.5,-0.5 -0.3,0 -0.5,0.2 -0.5,0.5 v 1.7 3 5 c 0,0.6 -0.6,1.2 -1.2,1.2 -0.6,0 -1.2,-0.5 -1.2,-1.2 V 40.5 37.3 33.2 32 28.2 28.3 c 0,-0.2 -0.1,-0.4 -0.4,-0.4 -0.2,0 -0.4,0.2 -0.4,0.4 v 1.3 3.5 1.8 c 0,0.4 -0.3,0.7 -0.7,0.7 -0.4,0 -0.7,-0.3 -0.7,-0.7 v -1 -3.5 -4.2 c 0,-1 0.8,-1.9 1.9,-1.9 h 5.2 0.3 c 0.2,0 0.5,0.1 0.6,0.3 l 2.1,2.1 2.5,-2.5 c 0.4,-0.4 1,-0.4 1.3,0 0.4,0.4 0.4,1 0,1.3 l -3.2,3.2 C 34,28.9 33.8,29 33.5,29 33.3,29 33,28.9 32.8,28.7 L 32,27.9 31.8,27.8 h -0.2 c -0.2,0 -0.4,0.2 -0.4,0.4 v 1.6 10.6 l 7.68e-4,4.906766 c 9.4e-5,0.6 -0.6,1.2 -1.2,1.2 -0.6,0 -0.957071,-0.484801 -0.957071,-1.184801 0,0 0.0563,-6.496244 0.0563,-9.721965 z"
+            id="path14"
+    />
+    <circle
+            cx="42.400002"
+            cy="21"
+            r="1.5"
+            id="circle16"/>
+    <circle
+            cx="42.400002"
+            cy="24.5"
+            r="1.5"
+            id="circle18"/>
+    <circle
+            cx="42.400002"
+            cy="28.200001"
+            r="1.5"
+            id="circle20"/>
 </svg>
diff --git a/scripts/generateIncludedImages.ts b/scripts/generateIncludedImages.ts
index d0902ae15..67eab59e3 100644
--- a/scripts/generateIncludedImages.ts
+++ b/scripts/generateIncludedImages.ts
@@ -17,13 +17,18 @@ function genImages(dryrun = false) {
             throw "Non-svg file detected in the svg files: " + path;
         }
 
-        let svg = fs.readFileSync("./assets/svg/" + path, "utf-8")
+        let svg : string = fs.readFileSync("./assets/svg/" + path, "utf-8")
             .replace(/<\?xml.*?>/, "")
             .replace(/fill: ?none;/g, "fill: none !important;") // This is such a brittle hack...
             .replace(/\n/g, " ")
             .replace(/\r/g, "")
             .replace(/\\/g, "\\")
             .replace(/"/g, "\\\"")
+
+        let hasNonAsciiChars = Array.from(svg).some(char => char.charCodeAt(0) > 127);
+        if(hasNonAsciiChars){
+            throw "The svg '"+path+"' has non-ascii characters";
+        }
         const name = path.substr(0, path.length - 4)
             .replace(/[ -]/g, "_");