:root{
  --m4-white: #FFFFFF; /* The background: posts, panels, posters, covers, boxes. It leads. */
  --m4-deep-green: #123524; /* The brand's voice: titles, the logo, the tags, the avatar. */
  --m4-road-sign-green: #1F6A45; /* The second green: the road, the forest, the lanes, the English line. */
  --m4-paper: #F6F4EF; /* The warm white of the book and of print. */
  --m4-asphalt: #1C1F1D; /* Body text on white. */
  --m4-mint: #A6DDBB; /* Rare: highlights on deep green only, never on white. */
}