This is the main window of SunlitGreen Photo Editor where you will be able to visualize all your pictures. 

The Image menu will allow you to create a duplicate, to set image and canvas sizes, but also to trim the image. 

The Adjust menu enables you to modify the levels, the curves, the color balance, the saturation and the contrast. 

This is the Options window of SunlitGreen Photo Editor where you can choose to save the layout when you exit the program.