import { bgRgb24 } from "https://deno.land/x/coward@v0.3.2/deps.ts";
Set background color using 24bit rgb.
color can be a number in range 0x000000 to 0xffffff or
an Rgb.
To produce the color magenta:
bgRgba24("foo", 0xff00ff);
bgRgba24("foo", {r: 255, g: 0, b: 255});