Click button to select brush type. Circle indicates current brush size, opacity and hardness. Adjust brush settings   Drag sliders to adjust brush settings.   To restore default parameters, click Default. Draw over area you want to restore   Click and drag to make a stroke.   Part of image under stroke will be restored to initial state. To view original image, hold . To undo / redo changes   To undo / redo last strokes, click / .   To cancel all changes, click .