Powerful creative tool but no undo function

Its easy and quick to add texture and other creative effects to images. Id give the app a five star rating except that you cant undo a change or back up to the beginning.

My workaround is to save the current image then reimport it to make more changes, or just start over again. If the developer added the ability to back up or undo this would be a great app.

Meanwhile, there are apps that do similar effects without the frustration.

fdking about Mextures Photo Editor, v2.3.2