Gradience VS adw-gtk3

If your main problem with Adwaita are the colors, you can easily customize them, and there are even great GUI tools for this[1]

My issue with Breeze aren't the default colors, but rather the theme itself

[1]: https://github.com/GradienceTeam/Gradience

I really like GTK4 / Adwaita and dislike the look and feel of QT, but I guess that's just personal preference.

You can change the colors of Adwaita using https://github.com/GradienceTeam/Gradience it even has a mode to extract colors from your background like current android versions

Application Theme : adw-gtk-3 with Gradience

This might be an alternative for now - https://github.com/GradienceTeam/Gradience

if the app is using libadwaita you cannot modify the css, you can use gradience to set custom colours though, but it is not the same as modifying the css

For everything else I use the only tool available for properly configuring GNOME: dconf-editor. At this transitional time, managing themes is a challenge, but I like Gradience.

You could also use themix or Gradience

Try https://github.com/GradienceTeam/Gradience/ .

You've tried Nord from Gradience ?

Use this theme

As far as I know it doesn't exist yet... but most likely Evince will be ported in the future. But while that doesn't happen, what you can do is use the adw-gtk3 theme (https://github.com/lassekongo83/adw-gtk3) for legacy applications to combine with applications that are already ported to libadwaita

Why not use the adw-gtk theme for gnome to make all the deco's match rather than use Adwaita-Dark?

Application Theme : adw-gtk-3 with Gradience

You can use the adw gtk3 theme. https://github.com/lassekongo83/adw-gtk3

GTK theme: adw-gtk3

That's because i use this KvLibadwaita and adw-gtk3 themes to have everything looking the same on Gnome :>

Just found a workaround for the issue until an update fixes the issue for Fedora 28 - Alt+F2, type "r" to restart Gnome Shell. More info: https://github.com/lassekongo83/adw-gtk3/issues/213

I believe that adw-gtk3 could still be beneficial in ensuring a uniform appearance across both GTK3 and GTK4 applications. The more solutions we can offer to users, the greater the likelihood of achieving the desired outcome.