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The Edit tab on This shows an image of the Sombrero galaxy, with editing controls to the left and right. Two sliders, labelled A to the left allow adjustment of brightness and contrast. A zoom slider top left is labelled B. To the right are a number of labelled control buttons. The colour shift tool labelled C allows alignment of the red, green and blue layers of the image that were taken through different filters. The colour balance tool (labelled D) allows adjustment of the strength of the individual red, green and blue components. There is a Save button labelled E and depicting a floppy disk at top right. There are a number of additional tools below these, having functions such as reflecting or inverting the image, and converting to black and white. At bottom right is a Help button labelled with a question mark.