You should define both foreground and background colors together, implicitly, or not define them at all. Really you shouldn't reproduce it (just define both fg and bg and don't rely on common defaults), but if you want, it is firefox with browser.display.use_system_colors = true and env GTK_THEME=Adwaita:dark

Good work, thanks. Can you add a license?

could you request an unblocking of the domain
https://www.quad9.net/result/?url=covid.observer

Currently it says this chart is used "to estimate how safe travelling is". Usually on safety charts higher is better, for example vehicle with 5 stars NCAP are safer that 3 stars NCAP.

Therefore some people may misinterpret it. It should say "to estimate how unsafe travelling is". Or have some note like "to estimate how safe travelling is (higher is less safe)".

Тут странные цифры показываются https://covid.observer/ru/77/

In #6 I've splitted the Netherlands to exclude the independent territories, France, Denmark and the UK have similar situations. Want me to split those up as well?

Hello. Please add category "Russia excluding Moscow" like you did it for "World excluding China" & "China excluding Hubei".
The first reason to do this is that Russia is very big country so now Moscow isn't at same pandemic stage that is in the rest Russia.
And the second reason is Moscow stats is much more reliable (but Moscow stats also isn't very realible due to political and some other reasons) than stats in other regions (including Moscow region and Saint-Petersburg, lol) so it's not very correct to compare Moscow and the rest Russian stats.

P. S. sorry for my bad English