However I do not know if you noticed that in weatherunderground says light rain and in the background the rain falls to normal or is written rain and the rain falls weak, heavy rain and rain falls normal. Then I made also a post on this but no response
FYI...YoWindow takes it weather information from the nearest weather station in your area...
Now if that station is somewhat far away...you could get a different weather pattern...
This is inherent to all weather apps...
Only way around this is to have your own PWS...(Personal Weather Station)
As far as other stock landscapes...You already have quite an amount to choose from...Or you can choose to add your personal landscape made from a picture...
It takes some programming to come up with a new stock landscape...Quality over quantity is key here...