bug fix in enable disable button

static/app-strings.json

@@ -2314,5 +2314,6 @@
   "Apply": "Apply",
   "24-hour clockss": "24-hour clockss",
   "background": "background",
+  "Disable background": "Disable background",
   "--end--": "--end--"
 }

ui/component/wallpaper/view.jsx

@@ -234,7 +234,7 @@ const Wallpaper = (props: Props) => {
       <div
         className={'background-image'}
         style={{
-          backgroundImage: background ? `url(${freeezepeach})` : `none`,
+          backgroundImage: background ? `none` : `url(${freeezepeach})`,
         }}
       />
       <div className={'theme'} />