Visible Scrollbar - Invision
Makes Invision's Inspect page scrollbars actually visible by changing to red using ::-webkit-scrollbar-thumb and !important. It inserts a style element before the first linked stylesheet.
Adds a custom scrollbar to chat with a snap-to-bottom button that glows when a new messages is received. The userlist scrollbar is hidden until you hover over the list and hides after the mouse leaves.
WorkFlowy CommonMark live preview
Render a live CommonMark-interpreted preview of WorkFlowy notes: On nodes with a description, preview appears beneath while edit window is limited to a specific height with a scrollbar. Doesn't affect nodes without a description.