Examine source code of Matrix Theme

{
  "name": "Sandro Linux Matrix Theme",
  "description": "A theme which gives Firefox a Black and Lime look",
  "version": "2.0",
  "manifest_version": 2,
  "icons": {
    "48": "SLE_Matrix_Icon_48.png",
    "800": "sandrolinuxtheme.png"
  },
  "theme": {
    "colors": {
      "frame": "#000000",
      "tab_background_text": "lime",
      "tab_loading": "lime",
      "tab_selected": "#000000",
      "toolbar_field_highlight": "#ff0000",
      "toolbar_field": "ff9100",
      "toolbar_field_text": "#ffffff",
      "toolbar_text": "#ffffff",
      "tab_line": "lime",
      "popup_highlight": "lime",
      "ntp_background": "#000000",
      "popup_border": "lime",
      "sidebar": "#000000",
      "toolbar": "black",
      "toolbar_field_border": "black",
      "popup": "black",
      "popup_highlight_text": "black",
      "popup_text": "white",
      "sidebar_highlight_text": "white",
      "sidebar_highlight": "lime",
      "sidebar_text": "white"
    }
  }
}