If I want a small icon in a toolbar, which is set to show large icons, I need to set toolbar-icons to small and all button-icons to large except the one I want to be small.
Is there a solution to just set an icon to small (and not all others to large)? I need it for a drive menu (large menu-icon, but small drive-icons in the list) and don't want always to edit all other buttons on later changes.
have to set the sizes on all buttons on the toolbar (and set the toolbar itself to not override them, i.e. Icon Size: Default in Customize/Toolbars)
or:
Use a special icon set which only has small icons, then set the button you want different to all the others to use it.
I would go with the first option myself. The toolbar icon size overrides restrict things and I avoid turning them on. Setting icon sizes on individual buttons doesn't take long and only needs to be done once, so I do that when needed.
If the toolbar is set to Icon Size: Default (I guess "standard" or similar with the German translation) then the size of each button is decided by the Large Icon checkbox in each button.
The icon sizes then will either be large (checkbox on) or small (checkbox off). There's no need for a separate small checkbox there as small is the same as "not large".