Triggered rename dialog. Still have icons in there
From what I understood loadMimeTypeIcon has this fallback to use "Unknown" icon, see D15451
It's a bit ugly that fallback is a QIcon, not a QString :/
I will send a patch to Qt
Why is it ugly? I think the fallback is usually meant to fall back to e.g. a built-in icon pixmap, but doing a chain of fromTheme fallbacks is just fine imho.
Well, there are certainly more ugly things out there :)