Examine source code of proWINnomis

{
  "name": "proWINnomis",
  "manifest_version": 2,
  "version": "6.0",
  "theme": {
    "images": {
      "theme_frame": "pWn_50px_hoch_FIREFOX_RAND.png"
    },
    "colors": {
      "frame": "rgba(219, 219, 219, 1)",
      "tab_background_text": "rgba(50, 63, 71, 1)",
      "toolbar": "rgba(50, 63, 71, 1)",
      "bookmark_text": "rgba(255, 255, 255, 1)",
      "toolbar_field": "rgba(250, 250, 250, 1)",
      "toolbar_field_text": "rgba(50, 63, 71, 1)",
      "tab_line": "rgba(119, 193, 79, 1)"
    }
  }
}