'Star in Purple box' icon for downloaded apps while switching tabs using Alt + Tab

Question

I installed Elementary OS 7.0 Horus and downloaded Chrome and Firefox browsers.
Chrome - via dpkg after downloading the .deb file
Firefox - via apt - snap downloaded and installed

Using Alacarte app, I set the icons for both the applications.
I am able to see these app icons in the dock.

However, after opening the apps and switching between them using Alt + Tab, I see 'Star in Purple box' icons for both Chrome and Firefox. It becomes a bit difficult for me to identify the apps in this case.

Could someone please mention what could be going wrong and how to fix them?

Thanks,
Praseo

Answer 1

I'm using AppEditor for years, you can find it in AppCenter, and never had an issue with it. I believe it has been originally developed for elementaryOS, so maybe try it.