user52196: It seems like the banner on Biology.SE was updated to be a lighter color. Unfortunately, there is now poor contrast between the site logo and the banner background:

Can this be reverted or fixed? Who controls these things?
For what it's worth, I'm browsing the site with Chrome v100.0.4896.60, and I've noticed the same problem on mobile (Safari on iOS 15.4.1).

user70125: This bug has been fixed. More details can be found on my answer over
on Meta Stack Exchange:

This issue has been fixed. Short version: There was an upstream change in our Stacks library that caused the css specificity of the default theme to be higher than the network themes. As a result, the default theme was applied to all of the components (buttons, fonts, and so on) across the network. We put in a quick (but reliable) fix on the Stack Exchange-side of things while we look into addressing the root cause in Stacks.


52196: <p>It seems like the banner on Biology.SE was updated to be a lighter color. Unfortunately, there is now poor contrast between the site logo and the banner background:</p>
<p><a href="https://i.stack.imgur.com/bmqOK.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/bmqOK.png" alt="new banner" /></a></p>
<p>Can this be reverted or fixed? Who controls these things?</p>
<p>For what it's worth, I'm browsing the site with Chrome v100.0.4896.60, and I've noticed the same problem on mobile (Safari on iOS 15.4.1).</p>
 70125: <p>This bug has been fixed. More details can be found on <a href="https://meta.stackexchange.com/a/377953/395497">my answer over
on Meta Stack Exchange</a>:</p>
<blockquote>
<p>This issue has been fixed. Short version: There was an upstream change in our <a href="https://stackoverflow.design/" rel="nofollow noreferrer">Stacks library</a> that caused the css specificity of the default theme to be higher than the network themes. As a result, the default theme was applied to all of the components (buttons, fonts, and so on) across the network. We put in a quick (but reliable) fix on the Stack Exchange-side of things while we look into addressing the root cause in Stacks.</p>
</blockquote>
