Examine source code of Crossing Life

{
  "name": "Crossing Life",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "2BM1.gif"
    },
    "colors": {
      "frame": "rgba(48, 240, 211, 1)",
      "tab_background_text": "rgba(240, 22, 22, 0.37)",
      "bookmark_text": "rgba(240, 22, 22, 0.37)",
      "toolbar_field": "rgba(240, 22, 22, 0.37)",
      "toolbar_field_text": "rgba(48, 240, 211, 1)"
    }
  }
}