There is a file manager in my application. Hovering the files shows a 3-dot icon at the top-right corner. The problem is, that it is difficult to make it visible enough on different backgrounds, since the icons and thumbnails can be of different color.
I came up with adding dark background for 3-dots and making 3-dots white. So now it's visible on any background, but I honestly don't really like the solution.
What are other ways to make 3-dot icon visible on different backgrounds?