Paintstormstudio.com

Hi. I'm new to Paintstorm Studio and I'm really struggling with the lack of documentation. So I hope this will be an appropriate place to ask questions. I notice that, when using layers, the layer thumbnail images seem to be the reverse of what I've painted. Is there a reason for this? It's a bit distracting but not a big issue. I'm just trying to figure out if I'm doing something wrong.

The only one idea: you accidentally Press H key to flip canvas horizontally.

Ah! Thank you! I think that must be it. This is a great software application. Is there a detailed manual for it?