STR:

1. Ctrl + or Cmd + to zoom in on any site.
2. Look at the zoomlevel indicator at the right edge of your address bar.

ACTUAL RESULTS:
The indicator fills the entire height of the address bar, and its border runs up against the border of the address bar.

EXPECTED RESULTS:
There should probably be some padding around it (at least, there used to be padding around it, and that changed recently, which I'm guessing was by accident)

This is similar to bug 1696628 (and might've been regressed by the same change, I'm not sure)

ni=mak to be sure this is on his radar, since he worked on related-bug 1696628 recently.

padding wouldn't work in this case since the background color is applied to the button itself, not any children. this fixes it for me:

#page-action-buttons {
    display: flex;
    justify-content: end;
    align-items: center;
}