Each tool is made up of a bunch of image files stacked on top of each other. The tool shadow, then the tool itself (with variants for retina and non-retina, then variants for iPad and iPhone with a longer stem), then the outline glow if its the selected tool.
The Repair wand gets some extra-special treatment with a sparkle particle emitter swirling around the magic wand. If you think using sparkles for AI is overdone, just know that it predates the AI boom by quite a while. You should’ve spoken up when auto-enhance was rolled out 20 years ago, and that’s on you. 🫵✨