The theme editor now supports up to 10 accent colors, up from 2. Every accent color is available in the text formatting toolbar and highlight menu, so authors can build richer, more on-brand visual systems without workarounds.
When an accent color is deleted from the theme, any tile that used it now shows a recovery option to restore the exact hex value — instead of silently losing the color. This makes it safe to iterate on the palette without accidentally stranding content.