I've made two dark themes, one for Bugzilla and one for the Manual Pages.
I am not a web designer so it's far from perfect, but at least it's not bright anymore and it feels more comfortable for my eyes.
For those who are interested, instructions are in links below...
So I have been using the FreeBSD forum with dark theme for a while now. And I notice that somethings are impossible to read with this color scheme.
Here are some examples that I could find in the last 5 min.
Chromium 73 will now use the systems gtk 3 dark theme
Open the chromium settings and under Appearance select:
Then quit chromium
install a dark gtk3 theme
# pkg install gtk-arc-themes
How to install and set up gtk and qt5 dark themes
QT5 and GTK are used to create the graphical user interface for applications,
they each have there own look which is determined by the theme and icons installed
So installing a dark gtk theme wont change the look of qt5 applications like vlc...