[Full Changelog](https://github.com/matrix-org/matrix-react-sdk/compare/v1.6.1...v1.6.2-rc.1) * Custom theming MVP [\#3503](https://github.com/matrix-org/matrix-react-sdk/pull/3503) * Don't mark a room as unread when someone adds an alias [\#3505](https://github.com/matrix-org/matrix-react-sdk/pull/3505) * Fix upgraderoom slashcommand [\#3504](https://github.com/matrix-org/matrix-react-sdk/pull/3504) * Update stripped emoji and bump emojidata to 4.0.2 [\#3501](https://github.com/matrix-org/matrix-react-sdk/pull/3501) * Support local permalinks for unfederated instances [\#3500](https://github.com/matrix-org/matrix-react-sdk/pull/3500) * Accessibility fixes to the LeftPanel [\#3499](https://github.com/matrix-org/matrix-react-sdk/pull/3499) * Make Autocomplete more accessible to screen reader users [\#3497](https://github.com/matrix-org/matrix-react-sdk/pull/3497) * Fix: even more resilience to detect slash commands [\#3496](https://github.com/matrix-org/matrix-react-sdk/pull/3496) * Fix PropTypes usage, sdk import path and GroupMemberTile letter-avatar [\#3486](https://github.com/matrix-org/matrix-react-sdk/pull/3486)