Issue Summary

On Confluence pages converted to the Fabric editor, text with an explicitly set dark hex color (like #292a2e) intermittently fails to convert to its dark mode equivalent. This results in dark text on a dark background, making the content unreadable.

Steps to Reproduce

1. Open a Confluence page that has been converted to the Fabric editor and contains text with the color explicitly set to #292a2e.
2. Enable Dark Mode in the Confluence theme settings.
3. Observe the text visibility.
4. If the text is visible, reload the page multiple times to check for intermittent rendering issues (potential race condition).

Expected Results

Text with explicit hex colors should automatically be converted to a high-contrast equivalent when Dark Mode is enabled.

Actual Results

The text retains its dark hex color (#292a2e), making it nearly invisible against the dark background.

Workaround

Toggling the theme between Dark Mode and Light Mode, then back to Dark Mode, may temporarily resolve the visibility issue until the page is reloaded.

Alternatively, editing the page to change the text color to "Default" (removing the explicit hex code) ensures the editor handles theme switching correctly.