MediaWiki UI ComboBox design is needed (and by 'design', I meant both design and implementation). The current one is a bit messed up.
Current design looks thus:
- Dropdown menu is not full-width
- Indicator on disabled combobox is not disabled
I tried to cook up something better here: https://gerrit.wikimedia.org/r/#/c/186536/
- Looks all messed up.