A full colour grading suite, the sort of chain a colourist works through on a film. Twenty-two presets set it all at once if you want a look rather than control.
The stages run in the order a professional would use them: exposure and white balance first, then contrast and the tone curve, then the three-way colour wheels that tint shadows, midtones and highlights separately, then saturation, then split toning.
Two are worth singling out. vibrance is not the same as saturation: it scales each pixel by how unsaturated it already is, so muted colours come up while already-vivid ones are left alone. It is the one to reach for on skin.
The HSL secondary at the end is a keyer. It isolates a range of hue, saturation and brightness with a soft edge and corrects only inside it, which is how you change a sky without touching anyone standing under it. All of it runs in linear light.