I've created masking of layers to be able to create new colored kobolds using the tinting properties in PixiJS. There is also a color matrix mode I can use for much greater control, however it is complex and difficult to understand, so I went with tinting instead. For future reference, all mask layers that will go on top of kobold types need to be white or off-white, as tinting only applies darkening to the texture in question.
I've created masking of layers to be able to create new colored kobolds using the tinting properties in PixiJS. There is also a color matrix mode I can use for much greater control, however it is complex and difficult to understand, so I went with tinting instead. For future reference, all mask layers that will go on top of kobold types need to be white or off-white, as tinting only applies darkening to the texture in question.