gecko-dev/devtools/client/webide/themes/logs.css

html, body {
  background: var(--theme-body-background);
  color: var(--theme-body-color);
}

h1 {
  font-size: 1.2em;
}

ul {
  padding: 0;
  font-size: 1em;
}

li {
  list-style: none;
  margin: 0;
}