Issue Summary
The Dark Theme was launched starting with the Jira Software Data Center 10.3 release;
JRASERVER-63150 - A dark theme for Jira Server - dark background, contrasting text, etc
However, the customization of the color scheme is still not available for Dark Theme.
Steps to Reproduce
- Enable Dark theme in Jira > Profile > Dark

- Go to System > User Interface > Look and feel
You will see that customizing the color scheme is not yet supported;

Expectation
The color scheme configuration should also be applicable to Dark Theme.
Customer is asking to remove the header color option in the widgets since is not applicable when you are using dark mode and this can confuse users.