I like to keep my bookmarks organized with separators. I've noticed that on every new theme under "Firefox Themes" other than Default, the separators have next to no contrast with the color behind them. This is the case for both the Light Mode and Dark Mode versions of the themes. I enjoy the appearance of most of the new themes, but I would really prefer the separators be visible. It should be noted that I am on Mac and I do not know whether this issue is present on all operating systems.
