I have tried your new settings for Rain. They are better but need further improvements.
1- The background is not dark enough to see correctly snow, lightnings and towns. Your new setting is 200,200,200, I personally use 170,170,170 and Windy settings are 111,111,111
2- The shading for small rainfall gives wrong information. See red arrow
This is because you have a light blue colour below 10mm which becomes darker between 10 and 20 mm and then lighter beyond 20mm.