title: How to set the default theme for users in GitLab
body: <p>Is it possible to set the default theme for users in GitLab? Looking in the <code>gitlab/gitlab.yaml</code> I see no options to set a default. </p>
  
  <p><img src="https://i.stack.imgur.com/XKWYg.png" alt="enter image description here"></p>
  
  <hr>
  
  <p>Looking in the database, I see that there is a <code>color_scheme_id</code>. I'd rather not edit the database for every user. </p>
  
  <pre><code>    mysql&gt; select id, name, theme_id, color_scheme_id from users;
  
  +----+-------------------+----------+-----------------+
  | id | name              | theme_id | color_scheme_id |
  +----+-------------------+----------+-----------------+
  |  1 | Administrator     |        1 |               1 |
  |  2 | foo foo           |        4 |               4 |
  |  3 | bar bar           |        2 |               1 |
  |  4 | foobar foobar     |        2 |               1 |
  +----+-------------------+----------+-----------------+
  4 rows in set (0.00 sec)
  </code></pre>