FileExtIcon

Small language icons for file names: TypeScript (ts, tsx), JavaScript (js, jsx, mjs, cjs) and JSON (json, jsonc). For any other extension it renders nothing, so place a generic file icon next to it when you need one. size defaults to 10px, matching tool rows; EditTool and the DiffReview file icons use it. AgentModeIcon and PlanModeIcon are the icons of the two default composer modes; pass them as icon in ModeSelector options. All icons use Mantine color variables and follow the color scheme.