Install this plugin to validate plugin before upload:
http://localhost/wp1/wp-admin/plugin-install.php?tab=plugin-information&plugin=plugin-check&TB_iframe=true&width=600&height=550

Comment out in AbstractService.php:
error_log( print_r( $message, true ) );

Last fixed by pritom:
1. Label type component transparent background issue fixed
2. Fixed opacity issue
3. Fixed Move to Front and Move to Back issue
4. Image opacity issue fixed
5. New component Shapes added
6. Opacity added for rectangle component
7. Added close icon/button as a component