Tinkle Highlights Your Active Window on MacOS osxdaily.com

One of the major complaints of the new Liquid Glass design on macOS Tahoe is that it’s difficult to differentiate windows, and that there is so little contrast between the active window and a background window that it can be challenging for many users to tell them apart quickly. Tinkle attempts to help you immediately determine which window is active by adding a little glowing visual effect around the perimeter of the active window whenever the window focus changes. It’s simple, effective, and a handy accessibility tweak, particularly for Tahoe users.