Remove legacy Colorbox and OG-based color options from admin config
>>> [!note] Migrated issue
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<!-- Migrated from issue #3556294. -->
Reported by: [joelpittet](https://www.drupal.org/user/160302)
Related to !81
>>>
<h3 id="summary-problem-motivation">Problem/Motivation</h3>
<p>Clean up the admin configuration by removing obsolete Colorbox and “provide templates” settings, along with unused OG-based coloring options. This includes pruning outdated config schema, defaults, and UI elements to simplify the configuration and reduce maintenance overhead.</p>
issue