The Plugin / GitHub / Settings labels open with siDeepseek, siGithub, and the harness's IconSettingsOutline14 gear, riding currentColor at the label's baseline. simple-icons is a dev-only dependency pinned to the harness ui-primitives' own 16.31.0 and tree-shakes into lib/client.js as exactly the two mark paths, so no runtime dependency is added and the marks are identical to the harness's own SiteGlyph artwork.