Examine source code of DarckB

{
  "name": "DarckB",
  "version": "1.0",
  "description": "",
  "manifest_version": 2,
  "theme": {
    "images": {
      "theme_frame": "images/theme_frame.png",
      "theme_toolbar": "images/theme_toolbar.png",
      "theme_tab_background": "images/theme_tab_background.png",
      "theme_ntp_background": "images/theme_ntp_background.png"
    },
    "colors": {
      "frame": [
        143,
        142,
        167
      ],
      "toolbar": [
        42,
        42,
        57
      ],
      "tab_text": [
        224,
        216,
        226
      ],
      "tab_background_text": [
        42,
        42,
        57
      ],
      "bookmark_text": [
        224,
        216,
        226
      ],
      "ntp_background": [
        255,
        255,
        255
      ],
      "ntp_text": [
        50,
        50,
        50
      ],
      "ntp_link": [
        6,
        55,
        116
      ],
      "button_background": [
        0,
        0,
        0,
        0
      ]
    },
    "tints": {
      "buttons": [
        0.8,
        0.15,
        0.87
      ]
    },
    "properties": {
      "ntp_background_alignment": "top",
      "ntp_background_repeat": "no-repeat"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{e233be5f-a773-4cf3-a12c-e01e7bc02570}"
    }
  }
}