Astronomy focused features

[Chester Hall-Fernandez]

Hey all,

I absolutely love using windy for planning my Astrophotography, and was wondering if it would be possible to add a couple of features:

Night mode - A low contrast red overlay to the windy GUI that helps retain night vision.

Astronomical seeing - A measure of how turbulent the air is, in arcseconds. Currently the only other website that measures this is Meoblue:

https://www.meteoblue.com/en/weather/outdoorsports/seeing/west-melton_new-zealand_2179460

I understand that these ant very accurate, but they can be better than nothing. You can estimate the quality of the seeing on how flat the lines are in the air gram, it would be nice if Windy could boil it down to a single (hopefully reasonably accurate) number.

Thanks for the awesome app,

Cheers!