Greasy Fork is available in English.
Add buttons to download images and videos in Twitter, also does some other enhancements.
Thanks, for the response. I have added the option that adds a white 2px border, it makes the button more visible I think.
Button coloring CSS you can easily find in the source code by searching /*red*/, /*green*/, /*blue*/ words.
opacity: 0; makes the button (.ujs-btn-download) invisible until hover.
I tested it and I liked it a lot, but i wanted to make the button constant, not hover, tried to edit the code but I didn't succeed since I don't understand css. Can you help me?