Add custom desktop background

app-misc/nayuos-chromium-policy/files/nayuos_policy.json

@@ -2,4 +2,8 @@
   "DefaultSearchProviderEnabled": true,
   "DefaultSearchProviderName": "DuckDuckGo",
   "DefaultSearchProviderSearchURL": "https://duckduckgo.com/?q={searchTerms}",
+  "WallpaperImage": {
+    "url": "https://softinst62285.host.vifib.net/public/Nayuos-Desktop.png",
+    "hash": "e070a65831492b2ba3415830690d14356ecdb7857ac0167e644129ff3312c16a"
+  }
 }