The issue
The button for sending feedback in the top bar of the JIRA doesn't have a visible button when you have no cursor over it.
Cause
This issue exists because the icon is white as well as the background.
Suggested fix
Make the icon black when the cursor is not over the feedback button.
Does this affect other JIRA trackers as well (not only Mojang's)? Where would I even find trackers to test this?Ok, on the JIRA bugtracker (the bugtracker of the bugtracker, jira.atlassian.com) it doesn't happen. It's only a result of a white symbol on a white background in this tracker, on the trackertracker it's white on blue. Could be that the symbol is always white, then the background color would have to be changed, but I don't know how it would work well with the rest of the page's design. Well, someone at Mojang will probably have a good idea. Maybe it can be grey for only that one symbol, like the search bar.