to make those distinguishable from other highlighted buttons.
The border at the bottom makes it look like a stack of buttons
that will be put into position when tapping the view-changing buttons.
Part-of: <https://gitlab.gnome.org/World/Phosh/squeekboard/-/merge_requests/635>
WIP
WIP: keymap generation test passes
meta: Update features and version
WiP: cargo.lock
WIP: don't crash
WIP: no outlines
parsing: New tests
WIP: base level works
WIP: remove old keyboard
symbols correctly input
WIP: lodaing files
WIP: fallback works
Valid fallback