Unable to change VLC icon

Hi, I took the .desktop file form

/var/lib/snapd/desktop/applications

and placed a copy of vlc_vlc.desktop in .local/share/applications, and then changed the icon path. But the VLC icon remains the same. It would be nice to know how to change the icon to one of our choice. I am using 20.04. Thanks.

Update 1:

The same happens with Chromium snap too