LoliPHP/public/static/style.css

body {
  --mainBackgroundColor: #301a30;
  --mainForegroundColor: #fcfcfc;
  font-family: "Open Sans", sans-serif;
  font-weight: 400;
  color: var(--mainForegroundColor);
  background-color: var(--mainBackgroundColor);
  font-size: 14px;
}