Layer Modes, sometimes called Blending Modes, allow you to combine layers in a variety of ways. We continue with the HSV Components Modes, which brings us to yet another color model, in this case the Hue, Saturation, and Value model. We've already looked at RGB, which is the model used for most broadcast and online uses, and the CMYK model which is used for printing. These are the Layer Modes available on the latest (at the time I write this) version of GIMP, 2.10.24.

Links:

https://docs.gimp.org/2.10/en/gimp-concepts-layer-modes.html

https://www.linuxtopia.org/online_books/graphics_tools/gimp_advanced_guide/gimp_guide_node55_004.html

https://www.youtube.com/watch?v=17Iivi0tmug&t=1734s

https://en.wikipedia.org/wiki/RGB_color_model

https://en.wikipedia.org/wiki/Subtractive_color

https://en.wikipedia.org/wiki/Color_model

https://en.wikipedia.org/wiki/HSL_and_HSV

https://snappygoat.com/

https://www.ahuka.com/gimp/hsv-components-layer-modes/