Update _index.md

Author: Adam Dupaski

content/en/docs/releasenotes/feature-release-calendar/_index.md

@@ -77,7 +77,7 @@ If you want to watch the keynote speech in which these announcements were made,
 | Studio Pro modernization | Released for GA on [Sep 28th, 2021](/releasenotes/studio-pro/9.6/#studio-pro-new-design) |
 | Team Server Git (Mendix Cloud) | Released for GA on [Mar 29th, 2022](/releasenotes/studio-pro/9.12/#team-server-git) |
 | BYO Git (Bring Your Own) | Released for GA on [Mar 28th, 2023](/releasenotes/studio-pro/9.24/#private-git) |
-| Studio Pro dark theme | Currently in Public Beta <br />GA: TBD |
+| Studio Pro dark mode | Currently in Public Beta <br />GA: TBD |
 
 ## 8 Data Hub 2.0