Examine source code of Hacker Theme 2013

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#02bd24",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "Hacker Theme 2013",
  "manifest_version": 2,
  "description": "ENG: Theme inspired by the hacker world. The main colors are green and black with a style matrix. The best theme for Firefox style hacker.\n\nITA: Tema ispirato al mondo hacker. I colori principali sono il verde e il nero con uno stile matrix."
}