Examine source code of Chrome Oceanic

{
  "manifest_version": 2,
  "version": "2.0",
  "name": "Chrome Oceanic",
  "theme": {
    "colors": {
      "toolbar": "#025a6c",
      "tab_line": "#025a6c",
      "tab_text": "#ffffff",
      "bookmark_text": "#ffffff",
      "frame": "#024351",
      "frame_inactive": "#356974",
      "tab_background_text": "#f4f7f9",
      "toolbar_field": "#f1f3f4",
      "toolbar_field_text": "#000000",
      "toolbar_field_text_focus": "#000000",
      "toolbar_field_focus": "#ffffff",
      "toolbar_field_border": "#f1f3f4",
      "toolbar_field_border_focus": "#b9d5f8",
      "toolbar_field_highlight": "#aecbfa",
      "toolbar_field_highlight_text": "#000000",
      "toolbar_field_separator": "#9b9c9e",
      "toolbar_text": "#ffffff",
      "toolbar_top_separator": "#025a6c",
      "toolbar_bottom_separator": "#013f4b",
      "toolbar_vertical_separator": "#025a6c",
      "tab_background_separator": "#54808a",
      "popup": "#ffffff",
      "popup_text": "#000000",
      "popup_border": "#b3b3b3",
      "popup_highlight": "#dbdbdc",
      "popup_highlight_text": "#000000",
      "tab_loading": "#a9f2f3",
      "tab_selected": "#025a6c",
      "sidebar": "#ffffff",
      "sidebar_highlight": "#c8c8c9",
      "sidebar_highlight_text": "#000000",
      "sidebar_text": "#000000",
      "sidebar_border": "#dadce0",
      "button_background_active": "#247080",
      "button_background_hover": "#166778",
      "icons": "#99e9e9",
      "icons_attention": "#1a73e8",
      "ntp_background": "#035a6c",
      "ntp_link": "#90d2e0",
      "ntp_text": "#90d2e0"
    }
  }
}