Export ColorActionName enum

[daniellwdb]

What's Changing and Why

This PR fixes #987 by exporting an enum with all possible values for the color method's apply parameters. I chose to use an enum because this makes refactoring easier compared to having plain strings. Originally the ColorActionName type was missing some values.

What else might be affected

This is a breaking change for projects using TypeScript because they would have to reference the enum directly and use their values.

Some possible fix for backwards compatibility (>TS4.1):

++ type ColorActionNameValue = `${ColorActionName}`

type ColorAction = {
-- apply: ColorActionName;
++ apply: ColorActionName | ColorActionNameValue;

If older versions need to be supported I can try to look into it.

Tasks

• Add tests
• Update Documentation
• Update jimp.d.ts
• Add SemVer Label

[github-actions]

🚀 PR was released in v0.22.6 🚀