User guide

Conceptual documentation for multicolorfits v3 — how the color pipeline fits together before you dive into step-by-step tutorials.

• Color compositing
• Intensity scaling
• Session model
• WCS, headers, and alignment
• Saving outputs
• Figures and mosaics

Page	Topics
Color compositing	Compositing modes, mode vs colorspace, backgrounds, RYB/CMYK
Intensity scaling	Stretches, zscale, signed flux (symlog / pysymlog)
Session model	McfSession, panels, legend/swatch, preview, palettes
WCS, headers, and alignment	McfHeader, crop, align_stack / Align layers…
Saving outputs	Rasters, FITS, cutouts, export script
Figures and mosaics	Combined WCS figures, mosaics, overlays