I am using windows 10 and I just upgraded to Firefox 57. I have the dark theme enabled and most of the ui components are in fact dark. However, the history menu is still white, the new tab pages are white, the hamburger menu is white,and the matches that come up in the address bar are white. I have some fairly severe vision issues that are exacerbated by any bright colors, so I would really like to find a solution to this. Let me know if anyone has any advice or knows how to fix this. Thank you.