Hi i'm working in a application that requires that the user save images to the the disk, and i found that node webkit can't render the main window background transparency(the last layer set to transparent)...It's difficult to say without seeing your capx, but it could be this problem.
This is a huge drawback, if we need to make applications that requires to edit and save images with alpha channel.
Hmm, this would explain why I can't get rid of the black. There shouldn't even be anything there. When the screenshot is taken, the majority of layers are hidden, and even if they weren't, what I'm seeing is not what the color of the layer is.
There are no sprites in the black area either. That area is just blank. So, nothing should be showing up during the screencapture process just like it does in Chrome.
I can't post the capx because it's nearing 2,000 events, but if you'd like to investigate this further, I would be willing to share more.
I'm going to redesign my HUD for now until because I just don't see any other option at the moment. I have no more choices for my export other than node-webkit, so I'll make something that works for that. I'll keep my old HUD in a separate file in case this gets sorted.