Really great, but I would love to be able to chose a color instead of having a random color. Also, having a black-list to disable the addon on some website would be great, it's making Google Photos looks weird.
But beside that I love it!

Youtube无法滚动，请问这个能修复吗？

尽快修复页面无法滚动的问题

Good, but not works on Youtube. (I cannot scorll the page on Youtube)

This is great and sorely needed, however the issues with it not working on "autopage" sites - and messing with the layout of certain other sites - really do need to be fixed. I can't honestly describe this add-on as usable in its current state. On another note, customisation options for colour/transparency of the scrollbar would be nice to have.

The extension is working, and it replaces the scroll bar. But after some time, the extension just stops working, and all the pages simply cannot be scrolled anymore. The plugin has to be disabled, and re-enabled again to work...