Examine source code of Hatsune Miku Pixel

{
  "manifest_version": 2,
  "version": "4",
  "name": "Miku Miku",
  "theme": {
    "colors": {
      "frame": "#137197",
      "tab_background_text": "white",
      "toolbar": "black",
      "bookmark_text": "white",
      "tab_text": "white", //or #137197
      "button_background_active": "#137197",
      "button_background_hover": "#137197",
      "tab_line": "white",
      "icons": "white",
      "icons_attention": "#137197",
      //"toolbar_bottom_separator": "white",
      "toolbar_field": "white",
      "toolbar_field_text": "#137197",
      "toolbar_field_border": "white",
      "toolbar_field_border_focus": "#137197",
      "toolbar_field_text_focus": "black",
      "toolbar_field_focus": "white",
      "toolbar_field_highlight": "#137197",
      "toolbar_field_highlight_text": "white",
      "toolbar_field_separator": "#137197",
      "toolbar_top_separator": "black",
      "toolbar_vertical_separator": "white",
      "ntp_background": "black",
      "ntp_text": "#137197",
      "popup": "black",
      "popup_text": "white",
      "popup_border": "#137197",
      "popup_highlight": "#137197",
      "popup_highlight_text": "white",
      "sidebar": "#137197",
      "sidebar_text": "black",
      "sidebar_highlight": "white",
      "sidebar_highlight_text": "#137197",
      "sidebar_border": "black",
      "tab_backgroud_separator": "white",
      "tab_loading": "#137197",
      "tab_selected": "black"
    },
    "images": {
      "theme_frame": "miku.gif"
    }
  }
}