To increase/decrease contrast, colour strength, brightness, and shadows click “Colours.” If you want to edit the saturation specifically, click on “Hue/Saturation” in the top menu. Adjust the intensity by testing the settings until you are happy with the image. If the window with the sliders obscures your view of the actual photo, making it difficult to see the different adjustments, you can click it away or drag it out of view. To increase or decrease the brightness and contrast, click on “Brightness/Contrast.” You can edit the photos by adjusting the slider on the scale.