✨ Editor: Add background image support (#3169)

bud.config.js

@@ -47,6 +47,9 @@ export default async (app) => {
    */
   app.wpjson
     .setSettings({
+      background: {
+        backgroundImage: true,
+      },
       color: {
         custom: false,
         customDuotone: false,

theme.json

@@ -3,6 +3,9 @@
   "$schema": "https://schemas.wp.org/trunk/theme.json",
   "version": 2,
   "settings": {
+    "background": {
+      "backgroundImage": true
+    },
     "color": {
       "custom": false,
       "customDuotone": false,