Modifiers
Brightness / ContrastAdjust overall lightness and tonal range.
ExposureShift overall light, measured in stops.
LevelsRemap black point, white point, and gamma.
Hue / SaturationShift colors and their intensity.
VibranceBoost muted colors while protecting skin tones.
Color BalanceTint shadows, midtones, and highlights.
TemperatureWarm or cool the overall white balance.
PosterizeReduce the image to a few tonal levels.
ThresholdConvert to pure black and white at a cutoff.
GrayscaleDesaturate to shades of gray.
InvertFlip colors to their negative.
SepiaWarm, vintage brown tone.
DuotoneMap shadows and highlights to two colors.
SolarizePartially invert tones past a threshold.
Gaussian BlurSmooth, even softening.
Motion BlurDirectional streak blur.
Radial BlurSpin or zoom blur around a center.
Chromatic AberrationSplit color channels for a lens-fringe look.
HalftoneSimulate printed dot patterns.
Pixel SortSort pixels into glitch streaks, at any angle.
GrainAdd film-like noise.
VignetteDarken or lighten the edges.
CropTrim the image to a region.
DrawingPaint freehand strokes with an adjustable brush.
TextType directly on the canvas; crisp at any zoom.
Modifiers are non-destructive and stack. Add the same one more than once and the effects compound, in order.