"add dark theme with colorful titlebar" : Marwaita Color Dark is wonderful! This man should be awarded the Nobel prize for GTK theme. Thanks very much.
BTW, the style looks pretty similar to your Lim series. What is the main difference between Marwaita and Lim?
I'm using it with GNOME, and it's good there too!
Don't suppose you've got a HACKING guide to allow us to try different customizations for ourselves? I noticed all the theme variants you made, and I've got a real hankering after the classic Solaris/HPUX CDE colors. Are they all built from a common source?
Great work, thanks a lot for sharing it with us.
Anyway I don't use it yet on my Ubuntu 19.04 because of incompatibility with my very favorite file manager (Double Commander aka. doublecmd-gtk, installed through apt, not by snap or appimage).
I don't understand what makes a dark theme work with this application or not but I see that Starlabs and Adwaita-dark are theming it perfectly. I don't know the difference with a theme like yours nor which files should be included or modified, sorry to be of no help.
Do you think that this issue with Double Commander could be fixed? I would be glad to use this theme as I really like it.
Here's a concrete example:
Marwaita Dark > https://i.imgur.com/iPPeI5P.png
StarLabs Dark > https://i.imgur.com/FGDgJHI.png
I've posted a message on application's forum to get more informations about the files to customize but nobody answered for now > https://doublecmd.sourceforge.io/forum/viewtopic.php?t=5769