Added user border controls to theme.json

blank-canvas-blocks/experimental-theme.json

@@ -286,6 +286,12 @@
 						"fontWeight": "normal"
 					}
 				}
+			},
+			"border": {
+				"customColor": true,
+				"customRadius": true,
+				"customStyle": true,
+				"customWidth": true
 			}
 		}
 	},