... Tone Control iPhotro now includes a full, professional-style color toolset: Color Curves Master RGB curve plus individual Red, Green, and Blue channels Fine control over shadows, midtones, and highlights Real-time preview while editing Levels Histogram-based tonal adjustment Per-channel (RGB) control for accurate contrast and exposure correction Selective Color Targeted adjustment of six color ranges (Red, Yellow, Green, Cyan, Blue, Magenta) Independent control of hue, saturation, and luminance Useful for skin tones, skies, foliage, and product colors ... ... Workflow & Philosophy Local-first : no cloud, no accounts Non-destructive editing by design Smooth, distraction-free UI inspired by macOS photo apps GPU-accelerated previews for responsive color editing Who It s For Photographers looking for a FOSS alternative