This feature is a persistent, AI-powered floating widget that replaces static toolbars with a "smart" object that adapts to your current selection.
While "thethingy" isn't an official name for an Adobe tool, you are likely referring to the (sometimes called the "magic eraser" or "object remover") in Adobe Photoshop . Top Feature: AI-Powered Object Removal ADOBE TOOL -thethingy-
Since you haven't specified exactly what "thethingy" does, I have designed for what this tool could be. This feature is a persistent, AI-powered floating widget