Start a 9.1.x branch for Webtheme theme and switch to use Olivero as the base theme
>>> [!note] Migrated issue
<!-- Drupal.org comment -->
<!-- Migrated from issue #3244742. -->
Reported by: [rajab natshah](https://www.drupal.org/user/1414312)
>>>
<h3 id="summary-problem-motivation">Problem/Motivation</h3>
<p>Switch to use Olivero as the base theme<br>
<span class="drupalorg-gitlab-issue-link project-issue-status-info project-issue-status-5"><a href="https://www.drupal.org/project/drupal/issues/3214072" title="Status: Closed (won't fix)">#3214072: Provide an Olivero sub-theme creation tool</a></span></p>
<h3 id="summary-proposed-resolution">Proposed resolution</h3>
<p>A new branch <strong>9.1.x</strong></p>
<h3 id="summary-remaining-tasks">Remaining tasks</h3>
<ul>
<li>✅ File an issue about this project</li>
<li>✅ Addition/Change/Update/Fix to this project</li>
<li>✅ Testing to ensure no regression</li>
<li>❌ Automated unit/functional testing coverage</li>
<li>❌ Developer Documentation support on feature change/addition</li>
<li>❌ User Guide Documentation support on feature change/addition</li>
<li>✅ Code review from 1 Webship core team member</li>
<li>✅ Full testing and approval</li>
<li>✅ Credit contributors</li>
<li>✅ Review with the product owner</li>
<li>✅ Release <strong><a href="https://www.drupal.org/project/webtheme/releases/9.1.0-alpha1">webtheme-9.1.0-alpha1</a></strong></li>
</ul>
<h3 id="summary-ui-changes">User interface changes</h3>
<ul>
<li>N/A</li>
</ul>
<h3 id="summary-api-changes">API changes</h3>
<ul>
<li>N/A</li>
</ul>
<h3 id="summary-data-model-changes">Data model changes</h3>
<ul>
<li>N/A</li>
</ul>
issue