How do Adobe Photoshop, Micrografx PicturePublisher and Pegtop XFader blend layers?

This article tries to give a survey of the most important blend modes, their advantages and disadvantages, and how they are coded.

introduction

normal mode
average mode
multiply mode
screen mode
darken mode
lighten mode
difference modes
overlay mode
hard light mode
soft light mode
dodge modes (color dodge & more)
burn modes (color burn & more)
quadratic modes
additive modes
interpolation mode
logical modes (XOR & more)

RGB modes (red, green, blue)
HSL modes (hue, satuartion, color, lumniosity)

opacity

survey of dark blend modes
survey of bright blend modes

final words (rounding, downloads, contact, links)