Dark mode not applied to pop-out Source Editor

[bwiernik]

RStudio 1.1.383
macOS 10.13.2 Beta (17C79a)

When the source editor is embedded in the main RStudio window, it correctly adopts dark mode like the rest of the interface. But when the editor is popped out to its own window, it reverts to the standard light mode interface.

Potentially related to #1573

[dfalty]

I can reproduce on 1.1.383 and the latest 1.2.183 (Mac 10.12.2). This only happens if you have a popped out source editor when transitioning from light to dark. If you return the editor and pop it back out, it will display correctly. Thanks for the report!

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs, per https://github.com/rstudio/rstudio/wiki/Issue-Grooming. Thank you for your contributions.