Software center becoming fully transperent

After updating from 18.04 to 20.04 my software center become fully transparent.

Solution 1:

You can try changing the theme. Not all themes have this transparency issue.

You can try installing a different theme from here: https://www.gnome-look.org/browse/cat/135/ord/latest/ (Many of these may have the same issue)

or

You can create your own theme using Oomox: https://www.ostechnix.com/oomox-customize-and-create-your-own-gtk2-gtk3-themes/

(Here is the link to the Oomox theme I created to get rid of this issue: Coffeetose, it may not be the best one though!)

...as a last resort, you can definitely change back to one of the default themes...!

I hope this will solve your problem for now.

Solution 2:

Change the theme of the application window back to Yaru (bug). For some reason there an issue applying themes the certain windows.