Xcode 26 on macOS 26 with a Dark theme in Light Mode

Is anyone else using one of the "Dark" editor themes (such as "Default (Dark)" or "Classic (Dark)" in Xcode? And is anyone doing this with Xcode 26 on macOS 26?

Here's the result while using the "Default (Dark)" theme while my Mac is in "light" mode:

Note that the black background of the editor goes all the way to the far left edge of the Xcode window. The large gray area in the project tree is the black background bleeding through the sidebar.

This is really distracting. Is there a way to fix this (besides not using a dark theme - I've been using dark themes for over 30 years)? This appears to be a poor design decision in macOS 26 to have split views show the background of the secondary column behind the primary column. iPadOS 26 has the same issue (see https://developer.apple.com/forums/thread/800073).

Xcode 26 on macOS 26 with a Dark theme in Light Mode
 
 
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