https://wiki.archlinux.org/title/GTK
    gsettings set org.gnome.desktop.interface gtk-theme Adwaita

https://docs.gtk.org/gtk4/css-properties.html
https://docs.w3cub.com/gtk~4.0/ch39s04

awt
https://superuser.com/questions/652606/is-there-a-way-to-increase-the-default-font-size-for-java-gui-applications

font engine
https://freetype.org/
https://freetype.org/freetype2/docs/documentation.html
https://freetype.org/freetype2/docs/design/index.html
https://freetype.org/freetype2/docs/tutorial/index.html
https://freetype.org/freetype2/docs/reference/index.html
https://freetype.org/freetype2/docs/ft2faq.html
https://freetype.org/freetype2/docs/glyphs/index.html

https://www.reddit.com/r/debian/comments/s0otbf/thunar_with_big_monitors_i_found_this_tip_to_fix/
    ~/.config/gtk-3.0/gtk.css
    .thunar { font-size: 18pt }
    $ thunar -q && thunar

$ lxappearance
    https://github.com/lxde/lxappearance
??? lxqt-config-appearance

?
~/.Xdefaults
~/.gtkrc-2.0

~/.config/gtk-3.0/settings.ini
...
gtk-theme-name="Menda"
...

--- Themes and keys

gtk-theme-menda

https://github.com/manjaro/release-plan/issues/43
sudo pacman -Sy vertex-maia-themes vertex-maia-icon-theme xcursor-maia
vertex-maia-themes:
For seamless integration of Firefox and Palemoon browsers please copy the 'chrome' folder of the desired theme to your browser profile or create a symlink.
For example:
    ln -s /usr/share/themes/Firefox/Vertex-Maia/chrome ~/.mozilla/firefox/9shb6xj3.default/chrome
    ln -s /usr/share/themes/Palemoon/Vertex-Maia-Dark/chrome/ ~/.moonchild\ productions/pale\ moon/<xyz123>.default/chrome


icon theme:

ls -la /usr/share/themes

~/.config/openbox/rc.xml

<theme>
    <name>Bear-tangerine</name>
    ...
</theme>

whatsnew
https://www.opennet.ru/opennews/art.shtml?num=59561
https://www.opennet.ru/opennews/art.shtml?num=58747