[Full Changelog](https://github.com/vector-im/riot-web/compare/v1.5.3...v1.5.4-rc.1) * Add doc for custom themes [\#11444](https://github.com/vector-im/riot-web/pull/11444) * Use new theme API in react-sdk [\#11442](https://github.com/vector-im/riot-web/pull/11442) * preload warning triangle [\#11441](https://github.com/vector-im/riot-web/pull/11441) * Update from Weblate [\#11440](https://github.com/vector-im/riot-web/pull/11440) * Add entitlements file for mic & camera permissions on macOS [\#11435](https://github.com/vector-im/riot-web/pull/11435) * Fix error/exception in electron signing script [\#11429](https://github.com/vector-im/riot-web/pull/11429) * Merge the `feature_user_info_panel` flag into `feature_dm_verification` [\#11426](https://github.com/vector-im/riot-web/pull/11426) * Let the user's homeserver config override the build config [\#11409](https://github.com/vector-im/riot-web/pull/11409) * Add cross-signing labs flag to develop and document [\#11408](https://github.com/vector-im/riot-web/pull/11408) * Update from Weblate [\#11405](https://github.com/vector-im/riot-web/pull/11405) * Trigger a theme change on startup, not just a tint change [\#11381](https://github.com/vector-im/riot-web/pull/11381) * Perform favicon updates twice in Chrome [\#11375](https://github.com/vector-im/riot-web/pull/11375) * Add labs documentation for Mjolnir [\#11275](https://github.com/vector-im/riot-web/pull/11275) * Add description of user info feature in labs doc [\#11360](https://github.com/vector-im/riot-web/pull/11360) * Update from Weblate [\#11359](https://github.com/vector-im/riot-web/pull/11359) * Add DM verification feature to labs.md [\#11356](https://github.com/vector-im/riot-web/pull/11356) * Add feature_dm_verification to labs [\#11355](https://github.com/vector-im/riot-web/pull/11355) * Document feature flag process [\#11341](https://github.com/vector-im/riot-web/pull/11341) * Remove unused feature flags [\#11343](https://github.com/vector-im/riot-web/pull/11343)