Examine source code of e2symphony

{
  "manifest_version": 2,
  "version": "1.1",
  "name": "e2symphony",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right top"
      ],
      "additional_backgrounds_tiling": [
        "no-repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(17, 58, 69)",
      "toolbar_text": "rgb(165, 195, 202)",
      "frame": "rgb(7, 31, 40)",
      "tab_background_text": "rgb(96, 119, 124)",
      "toolbar_field": "rgb(9, 67, 86)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgb(25, 73, 83)",
      "popup": "rgb(7, 31, 40)",
      "popup_text": "rgb(165, 195, 202)",
      "button_background_active": "rgb(7, 31, 40)",
      "ntp_background": "rgb(7, 31, 40)",
      "ntp_text": "rgb(139, 173, 183)",
      "popup_border": "rgb(17, 58, 69)",
      "sidebar_border": "rgb(17, 58, 69)",
      "sidebar_text": "rgb(139, 173, 183)",
      "sidebar": "rgb(7, 31, 40)",
      "tab_selected": "rgb(9, 67, 86)",
      "tab_text": "rgb(255, 255, 255)",
      "toolbar_bottom_separator": "rgb(17, 58, 69)",
      "toolbar_field_border_focus": "rgb(237, 124, 75)",
      "toolbar_field_border": "rgb(17, 53, 63)",
      "toolbar_field_highlight_text": "rgb(237, 124, 75)",
      "toolbar_field_highlight": "rgb(11, 43, 55)",
      "toolbar_field_text_focus": "rgb(165, 195, 202)",
      "toolbar_top_separator": "rgb(7, 31, 40)",
      "tab_loading": "rgb(25, 73, 83)"
    }
  }
}