Alt Tab Colorful is an add-on that brings dedicated color palette management directly into the Blender interface. It allows users to store, organize, and apply color sets without switching to external applications or browser windows.

The tool includes features for importing color palettes directly from popular platforms like Coolors and Colorhunt by pasting a URL. It also features a built-in palette generator that can create monochromatic, analogous, complementary, split complementary, triad, tetrad, and square schemes based on a single selected hue. Palettes can be edited, grouped into custom collections, and exported or imported using JSON files.

For material application, the add-on supports dragging and dropping individual color swatches directly onto targeted materials. It also includes an operator that automatically distributes the colors of an entire palette across multiple selected objects with a single click.