apply theme after scale

lazpaint/dialog/ubrowseimages.pas

@@ -267,8 +267,6 @@ begin
   FOverwritePrompt:= true;
   FOpenButtonHint:= ToolButton_OpenSelectedFiles.Hint;
 
-  UpdateTheme;
-
   FPreview := TImagePreview.Create(vsPreview, Label_Status, true);
   FPreview.OnValidate:= @PreviewValidate;
   FChosenImage := TImageEntry.Empty;
@@ -279,6 +277,8 @@ begin
   ScaleControl(Panel1, OriginalDPI, 0,0, true);
   ScaleControl(Panel2, OriginalDPI, 0,0, true);
 
+  UpdateTheme;
+
   vsList.BitmapAutoScale:= false;
 
   bmp := TBitmap.Create;