… variant.
Now with my recent code, instead of creating 2 different themes, I make
it a single theme containing both a Light and Dark variant.
I move all semantic logic into common.css which will be included by both
variants after they set up their color definitions.
For choosing the basic gray to use for the dark variant, I first looked
up what is usually recommended. Most articles on the web about dark
themes would cite some "Material design" project (apparently originated
from Google) which makes guidelines for Android/iOS/Flutter and web
applications. Their guidelines recommend #121212 ("Dark Grey") as
background color. I tried, it's **really** dark. Maybe I'm just not used
to it, but it feels like it might be OK for small phone "apps" which
people might want to watch in the dark, but possibly not for a full
grown desktop software. I don't really know, I might be wrong and some
people might want to edit their pictures with such dark GUI.
Anyway for now, I settled for a base background #303030, which is
already quite dark, darker than Adwaita dark or than our 2.10 dark
variant, but at least doesn't feel like a black hole.
