* **theme:** allow defining dark as the default theme ([#1498](https://github.com/vuejs/vitepress/issues/1498)) ([d404753](https://github.com/vuejs/vitepress/commit/d404753005bf4cc3bb645553ac473d08c6473180))
* **theme:** support html strings for SidebarGroup headings, SidebarItem text ([#1489](https://github.com/vuejs/vitepress/issues/1489)) ([946c579](https://github.com/vuejs/vitepress/commit/946c579f2b8957839b8e0ef3474bded5ad06de1a))