The spinbuttons in master look a bit odd. Particularly, - [ ] The text is larger than the rest of the UI text, and weirdly spaced - [ ] The +/- icons are not using the symbolic icons, making them look weird (GTK natively uses symbolic icons for this) - [x] When the content doesn't fit, it's cut off before the end of the entry, and there is a bit of whitespace on the right side. This is especially awkward because in some cases the content would fit if it weren't for the whitespace.   For comparison, this is a normal GTK3 spin button