Function color

packages/printer/test/docTree.test.ts:102–105

(
        doc: Doc.Doc<SimpleHtml>,
        color: "Red" | "Green" | "Blue"
      )

      const bold = (doc: Doc.Doc<SimpleHtml>): Doc.Doc<SimpleHtml> => Doc.annotate(doc, { _tag: "Bold" })

      const color = (
        doc: Doc.Doc<SimpleHtml>,
        color: "Red" | "Green" | "Blue"
      ): Doc.Doc<SimpleHtml> => Doc.annotate(doc, { _tag: "Color", color })

      const italicized = (doc: Doc.Doc<SimpleHtml>): Doc.Doc<SimpleHtml> => Doc.annotate(doc, { _tag: "Italicized" })