Examine source code of Yellow Tulips

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Yellow Tulips",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right center"
      ],
      "additional_backgrounds_tiling": [
        "repeat-y"
      ]
    },
    "colors": {
      "toolbar": "rgba(142, 153, 8, 0.5)",
      "toolbar_text": "rgba(247, 251, 247, 0.83)",
      "frame": "rgb(229, 201, 3)",
      "tab_background_text": "rgb(249, 253, 249)",
      "toolbar_field": "rgba(153, 88, 8, 0.09)",
      "toolbar_field_text": "rgba(189, 5, 242, 0.78)",
      "tab_line": "rgb(250, 240, 170)",
      "popup": "rgb(250, 240, 170)",
      "popup_text": "rgba(58, 84, 44, 0.78)",
      "button_background_active": "rgba(10, 45, 237, 0.78)",
      "button_background_hover": "rgba(70, 138, 35, 0.78)",
      "frame_inactive": "rgb(208, 201, 158)",
      "icons_attention": "rgb(231, 224, 179)",
      "icons": "rgb(248, 241, 194)",
      "ntp_background": "rgb(248, 241, 194)",
      "popup_border": "rgb(248, 241, 194)",
      "popup_highlight_text": "rgba(247, 251, 247, 0.83)",
      "popup_highlight": "rgba(70, 138, 35, 0.78)",
      "sidebar_border": "rgb(248, 241, 194)",
      "sidebar_highlight_text": "rgba(247, 251, 247, 0.83)",
      "sidebar_highlight": "rgb(62, 165, 17)",
      "sidebar_text": "rgba(58, 84, 44, 0.78)",
      "sidebar": "rgb(250, 240, 170)",
      "tab_background_separator": "rgb(192, 170, 24)",
      "tab_loading": "rgba(160, 10, 237, 0.78)",
      "tab_selected": "rgb(229, 201, 3)",
      "tab_text": "rgb(248, 241, 194)",
      "toolbar_bottom_separator": "rgba(58, 84, 44, 0.78)",
      "toolbar_field_border_focus": "rgba(184, 244, 153, 0.78)",
      "toolbar_field_border": "rgb(229, 201, 3)",
      "toolbar_field_focus": "rgb(250, 240, 170)",
      "toolbar_field_highlight_text": "rgba(247, 251, 247, 0.83)",
      "toolbar_field_highlight": "rgba(70, 138, 35, 0.78)",
      "toolbar_field_separator": "rgb(159, 144, 38)",
      "toolbar_field_text_focus": "rgba(58, 84, 44, 0.78)",
      "toolbar_top_separator": "rgb(237, 208, 6)",
      "toolbar_vertical_separator": "rgb(237, 208, 6)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{0830b9e9-af78-4061-9799-43bed2938b87}"
    }
  }
}