add reverse mask

web_app/src/components/SidePanel/DiffusionOptions.tsx

@@ -839,6 +839,17 @@ const DiffusionOptions = () => {
                   Shrink
                 </div>
               </Button>
+
+              <Button
+                variant="outline"
+                className="p-1 h-8"
+                onClick={() => adjustMask("reverse")}
+                disabled={isProcessing}
+              >
+                <div className="flex items-center gap-1 select-none">
+                  Reverse
+                </div>
+              </Button>
             </div>
 
             <Button

web_app/src/lib/types.ts

@@ -126,4 +126,4 @@ export enum PowerPaintTask {
   outpainting = "outpainting",
 }
 
-export type AdjustMaskOperate = "expand" | "shrink"
+export type AdjustMaskOperate = "expand" | "shrink" | "reverse"