In Stephen's spec, the :hover styling for one-offs has an alpha of 10%, but I used 6% for some reason. http://people.mozilla.org/~shorlander/mockups-interactive/awesomebar-results/awesomeBar-results-tabOrdering.html

Probably because the results use 6%.

Comment on attachment 8860575 [details] Bug 1358676 - One-off hover/mouseover color should be darker to match spec. https://reviewboard.mozilla.org/r/132586/#review135452 For the searchbar I think you want to apply this new hover color to the settings button too. When hovering a one-off button, the right border becomes darker but not the left-border. When hovering an open-search item, the top border becomes darker, but not the bottom border. This doesn't feel great. I think that problem already existed, but it's becoming more visible now that the contrast between hover and non-hover increases. Maybe we can improve this by just tweaking background-origin.

I'm going to mark this invalid. With bug 1358136 being fixed the way it is, with a CSS variable, (a) that actually makes the color a little darker than it currently is and better matches the spec, and (b) using a CSS variable is the right way to fix it, not by hardcoding the exact color. So there's no point in keeping this open I think.