Microsoft recently submitted a commit to Chromium , requesting that the modern "Fluent" scrollbar produced by Microsoft be merged into Chromium. The commit has implemented basic functions and passed the unit test.
According to Microsoft, the Fluent scrollbar is inspired by its system design language, Fluent. This means that the scroll bar on the right side of the browser will be a very thin line. It pops up when hovering over the scroll bar, providing a clean or "modern" experience.
▲ Hidden mode
▲ Full mode
The following figure is an intuitive comparison of the two schemes:
Regarding this feature, Microsoft has previously published a proposal (Fluent Scrollbars Visual Spec.) to modernize Chromium scrollbars to fit the Windows 11 Fluent design language . Additionally, Microsoft is considering some visually appealing changes to the way users interact with scroll bars in different modes in Chrome.