The ChemicalPainter package can be used to modify the Immersive Intelligence Chemical Painter recipes.

ZenScript
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import mods.immersiveintelligence.ChemicalPainter;

Type	Name	Required
Type IIngredient	Name Item Input	Required Yes
Type IItemStack	Name Item Output	Required Yes
Type int	Name Paint Amount	Required Yes
Type int	Name Energy	Required Yes
Type int	Name Time	Required Yes

Paint amount is the total amount of ink in mB used for a single process.
Amounts of specific ink are based on their percentage in the CMYK color model.

ZenScript
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mods.immersiveintelligence.ChemicalPainter.addRecipe(IIngredient itemInput, IChemicalPainterFunction function, int paintAmount, int energy, int time);

IChemicalPainterFunction is a function used to determine the output item of a recipe based on the stack and selected paint color.
For example, it can be used to get the core NBT tag or merge the core and casing's NBT tags.

Type	Name
Type IItemStack	Name Input
Type int	Name RGB Int Color
Type int	Name Vanilla Color

The Vanilla Color is a number 0-15 and represents a dye color based on damage value.

Returns: IItemStack

ZenScript
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mods.immersiveintelligence.ChemicalPainter.addRecipe(
    <ore:ingotIron>, 
    function(input, color, baseColor) {
        val nbt as IData = {key1 : color};
            return input.withTag(input.tag+nbt);
        }, 
    100, 2000, 200
);

Washing recipes are functionally the same as regular recipes, but are placed in a different category in JEI.

Type	Name	Required
Type IIngredient	Name Item Input	Required Yes
Type IItemStack	Name Item Output	Required Yes
Type ILiquidStack	Name Fluid Input	Required Yes
Type int	Name Energy	Required Yes
Type int	Name Time	Required Yes

ZenScript
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mods.immersiveintelligence.ChemicalPainter.addWashingRecipe(IIngredient itemInput, IItemStack itemOutput, ILiquidStack fluidInput, int energy, int time);

ZenScript
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mods.immersiveintelligence.ChemicalPainter.addWashingRecipe(<ore:ingotIron>, <minecraft:diamond>, <liquid:water>, 2000, 200);

Type	Name	Required
Type IItemStack	Name Output	Required Yes

ZenScript
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mods.immersiveintelligence.ChemicalPainter.removeRecipe(IItemStack output);

ZenScript
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mods.immersiveintelligence.ChemicalPainter.removeRecipe(<minecraft:diamond>);