some `color` primitives make the conversion fails

[Doublonmousse]

These are the

• desaturate method, fails with Color does not have a method "desaturate" or FieldAccess requires a dictionary
• color.hsl constructor, fails with Identifier "color" not found
• color.hsv constructor, fails with Identifier "color" not found
• color.linear-rgb constructor, fails with Identifier "color" not found
• .mix method, fails with Color does not have a method "mix" or FieldAccess requires a dictionary
• oklab constructor, fails with Identifier "oklab" not found
• oklch constructor, fails with Identifier "oklch" not found
• rotate method, fails with Color does not have a method "rotate" or FieldAccess requires a dictionary
• saturate method fails with Color does not have a method "saturate" or FieldAccess requires a dictionary

[Doublonmousse]

reproduction : https://github.com/Doublonmousse/pandoc-typst-reproducer/tree/main/color_issues

[jgm]

Right. We don't yet support all of the color methods. This could be added, but the color support is quite complex and it's not a high priority at the moment.