Issue Summary

With the Recent theme changes mentioned at Confluence Cloud Theming Beta and GA, we have the Light, Dark, and Original themes (beta) for Confluence Cloud.

Recently, it was changed to Light theme become the default.

The issue is that Team Calendars Event colors changed, without any manual changes from users, and when we click on the color from the macro team calendar, we get a different color than we are expecting.

Events with colors previously added to the Calendar got their colors changed to the "new" color palette without any user changes.

Steps to Reproduce

1. Create a Confluence Calendar (premium subscription needed)
2. Add an event
3. Pick a color for the event, e.g.: brown
4. Click on your avatar profile photo > Theme
5. Choose Original theme
6. Click on the Calendar's event color to see all colors available
7. Refresh page
8. Click at the avatar > Theme again
9. Choose the Original theme again
10. On a page, insert the Team Calendar macro
11. Add an event to the Calendar
12. Change the Theme to Original
13. On the macro, choose the color "brown" (last one from right column)

Expected Results

1- Theme color does not change with the Theme chosen.

2- Theme color palette for the event should stick, even after a refresh

3 - The color from the macro Calendar should match what we are choosing, not add grey or a different color

Actual Results

The color palette for the Original theme "reverts" back to the Light theme after the page refresh

Instead of the color seen in the color palette in the Team Calendar macro, we get a different color than expected.

Workaround

There is no available workaround at the moment for colors not in the Light Theme/Original theme.