import { attribute } from "https://deno.land/x/graphviz@v0.2.1/mod.ts";
const { colorscheme } = attribute;
This attribute specifies a color scheme namespace. If defined, it specifies the context for interpreting color names. In particular, if a color value has form "xxx" or "//xxx", then the color xxx will be evaluated according to the current color scheme. If no color scheme is set, the standard X11 naming is used. For example, if colorscheme=bugn9, then color=7 is interpreted as "/bugn9/7".