it is done

core/src/mindustry/ui/ReqImage.java

@@ -0,0 +1,40 @@
+package mindustry.ui;
+
+import arc.func.Boolp;
+import arc.graphics.g2d.*;
+import arc.scene.Element;
+import arc.scene.ui.Image;
+import arc.scene.ui.layout.Stack;
+import arc.scene.ui.layout.Scl;
+import mindustry.graphics.Pal;
+
+public class ReqImage extends Stack{
+    private final Boolp valid;
+
+    public ReqImage(Element image, Boolp valid){
+        this.valid = valid;
+        add(image);
+        add(new Element(){
+            {
+                visible(() -> !valid.get());
+            }
+
+            @Override
+            public void draw(){
+                Lines.stroke(Scl.scl(2f), Pal.removeBack);
+                Lines.line(x, y - 2f + height, x + width, y - 2f);
+                Draw.color(Pal.remove);
+                Lines.line(x, y + height, x + width, y);
+                Draw.reset();
+            }
+        });
+    }
+
+    public ReqImage(TextureRegion region, Boolp valid){
+        this(new Image(region), valid);
+    }
+
+    public boolean valid(){
+        return valid.get();
+    }
+}