Screen flickering issue on Ubuntu 20.04

[moazizdev]

the bug I'm facing a screen flickering issue on Ubuntu 20.04. the black screen is toggling and resizing to the full screen every second.

Steps to reproduce: Change the opacity to 0.5 in the safeeyes_style.css file. Run SafeEyes. Start a break (manually or time-based)

Expected behavior clean and stable black screen with transparent background.

Desktop:

Distributor ID:	Ubuntu
Description:		Ubuntu 20.04.3 LTS
Release:		20.04
Codename:		focal

safeeyes 2.1.3

GNOME Shell 3.36.9

libgtk-3-0:
  Installed: 3.24.20-0ubuntu1
  Candidate: 3.24.20-0ubuntu1
  Version table:
 *** 3.24.20-0ubuntu1 500
        500 http://eg.archive.ubuntu.com/ubuntu focal-updates/main amd64 Packages
        100 /var/lib/dpkg/status
     3.24.18-1ubuntu1 500
        500 http://eg.archive.ubuntu.com/ubuntu focal/main amd64 Packages

Screenshots Screenshot