This is very useful for the end product, but I will say that even just a pdf describing each feature would greatly help knowing how to manipulate the software. It lags a LOT just moving around an image. It can handle ripping at low resolutions, but it isn't anywhere as fast as the videos displayed above. I want to believe it's an issue on my end, but I would have no clue how to change the settings to increase performance, or if something enabled by default is lagging it. It also may just be laggy.
If you could add a setting that doesn't actually update the render in real time, so that you can move the rip section vertices without lag, and THEN it renders, that would immensely helpful, and would be friendly to high-resolution projects, even if the program is optimized in the future.
The work put into the UI and existing features is appreciated though, I think it looks and feels great when it isn't lagging and you know what the buttons do. The fact that images in the atlas can be different resolutions at the same scale is very helpful. And the importing/exporting features are fast and intuitive.
Additional things that would be quite useful would be scaling up/down a ripper area, and having corners snap to eachother. Since I'm using this in tandem with blender, things like that would be extremely convenient, and would contribute to the flow of the overall process.
That's my thoughts after using it, love the vibe and everything