302|Bugfix: Rendered published PNG of annotate tool have a less saturated color.

Description of fix

Change created image sequence colorspace to "XYZ".

How to test it

1. Draw with Annotate tool
2. Publish
3. Look at published annotations.

Checklist

Please check if your MR fulfills the following requirements:

• Build was run locally and any changes were pushed
• Lint has passed locally without error
• CHANGELOG.md has been updated
• Branch has been rebased on merge branch

FYI: @strangenoise