it is done

core/src/mindustry/ui/dialogs/PaletteDialog.java

@@ -0,0 +1,51 @@
+package mindustry.ui.dialogs;
+
+import arc.func.*;
+import arc.graphics.*;
+import arc.input.*;
+import arc.scene.ui.*;
+import arc.scene.ui.layout.*;
+import mindustry.gen.*;
+import mindustry.ui.*;
+
+import static mindustry.Vars.*;
+
+public class PaletteDialog extends Dialog{
+    private Cons<Color> cons;
+
+    public PaletteDialog(){
+        super("");
+        build();
+    }
+
+    private void build(){
+        Table table = new Table();
+        cont.add(table);
+
+        for(int i = 0; i < playerColors.length; i++){
+            Color color = playerColors[i];
+
+            ImageButton button = table.addImageButton(Tex.whiteui, Styles.clearTogglei, 34, () -> {
+                cons.get(color);
+                hide();
+            }).size(48).get();
+            button.setChecked(player.color.equals(color));
+            button.getStyle().imageUpColor = color;
+
+            if(i % 4 == 3){
+                table.row();
+            }
+        }
+
+        keyDown(key -> {
+            if(key == KeyCode.ESCAPE || key == KeyCode.BACK)
+                hide();
+        });
+
+    }
+
+    public void show(Cons<Color> cons){
+        this.cons = cons;
+        show();
+    }
+}