Yes, adjusting margins for every icon's amount of padding doesn't seem to be the right solution. I guess the solution would be to have icons without any padding, and where they should be shown centered inside a standard-sized box, that can be done in the layout code. It's going to take quite a bit of work to switch everything over.

> It's going to take quite a bit of work to switch everything over.

KDE has been around for 29 years, it will probably be around for 29+ more years.

I'd say that warrants "a bit more work", as something you can show your grandkids as being something you've built :-)