- Shipped
- October 21, 2026 at 7:18 AM UTC
- Author
- Kamo
- Commit
- fd9cc26
Following the left-edge round, the other three edges get the same treatment, on a fixed mapping: a top rule becomes a top-left ribbon, a right rule a bottom-right ribbon, a bottom rule a bottom-left ribbon. CornerRibbon learns its corner. The component takes `corner`; cornerRibbonSx takes an options object ({ size, corner, pseudo, anchor }, the old positional form still works); the CSS class gains --tr, --bl and --br. The light still comes from above, so on a bottom corner the shading reverses and the shadow falls between the band and the corner. Tabs: the root theme hides MUI's tab indicator and gives every selected tab an xs bottom-left ribbon (bottom-right on a vertical bar) in the tab's own colour. A bar that wants another colour sets --tab-ribbon-color; per-site indicator styles are removed or carried over to it, and hand-built tab bars (IoT, lead view, softphone, emoji picker, Docs) mark their tab the same way. Nav: the top bar selects an option exactly as the rail does, lit with a white xs ribbon instead of an underline, and a tool menu (Mail, Docs, Phone and the rest) is selected while any of its pages is open, in both navs. Left alone as before: dividers, progress and loading bars, spinners, full borders, connector lines, handles, and content the member styles themselves.