Your comments

I very much appreciate all the work you have put into the site. It has been incredibly useful throughout the pandemia.

Two suggestions, though, that could make it even more useful:

1)
Enable selection of deaths  ONLY for better visualisation. 
1.2)
Perhaps make deaths curves more easily distinguishable  - they are a tad too dark. On non-super bright devices/monitors all of them often appear almost black. Perhaps dotted color lines instead?

2)
Option for viewing data 'per mille' ('per capita).