Currently, the loading bar of the revision slider is in bright colors and moves quickly. This leads to some people staring at it while loading, even if they don't intend to use it (but have it pinned to be open always)
Goal: Remove the attention-drawing suction of the revision slider loading bar and replace it with this three-moving-bubbles animation (Reuse its CSS-Code for details of colors and animation)
The animation should be centered horizontally and vertically.
Info for the Hackathon 2018
If you are interested in working on this at the Wikimedia-Hackathon-2018 , @WMDE-Fisch can help you with any questions :-)