How do folks decide when to use a gamma slider vs a brightness slider vs the highlights/shadows slider? They may go by slightly different names in different PP programs. I read up on gamma a bit. So if system gamma = 1 is standard, then changing gamma seems to shift the brightness of an image but it does so by changing the shape and location of the gamma curve. Whereas a brightness slider probably just changes the luminance of the image in a fixed linear fashion. If you have highlights and shadows sliders, then you're only adjusting the bright tones or the dark tones of the image respectively. So using highlights and shadows sliders seems intuitive to me. Sometimes you just want to pull back the highlights or bring up the shadows. But when do you decide to adjust gamma as opposed to brightness? From what I can see (and guess), it's a curved adjustment as opposed to a linear adjustment. Is there a difference in practice?