we require a small gui implemented using the tool appmethod c++. It will be used for some light controls, so it needs to provide a way to select a brightness and a color level. The GUI will be designed by us in photoshop. Graphic elements will be provided. All you have to do at this stage is write some code, that will return a selected color and a selected brightness. The color could be read from the image itself, this will be some freely designed color gradient. Most likely some circle. The Hue needs to be selected from a wheel like function.
You need to be experienced in appmethod c++ development, we'll go into details when I tink you could be the right candidate.