Created attachment 180556 [details] desktopmenu ADDITIONAL INFORMATION In the taskbar, there are some icons in the overflow menu that do not seem to be using the icons coming from the same folder as the rest of the items. Depending on what we think is best, we need to source the icon from to have the same thickness.
This is an issue in the icon theme, not the code. All the code does here is ask for a small (16px) icon. It's up to the icon theme to provide the requested icons at the requested size; if it doesn't have the requested size, then the icon loaded will have to fall back to another larger icon size that then gets downscaled.
What I am understanding is that the issue here is that there is no, for example, bell icon equivalent at 32px but it exists at 24px (22 today). Would that be the same problem when it comes to the colorful icon in the same menu?
Yes. However, that's a problem of the icon theme, not the menu.