Examine source code of Panda Black

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Panda Black",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.png"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "center top"
      ],
      "additional_backgrounds_tiling": [
        "repeat-y"
      ]
    },
    "colors": {
      "toolbar": "rgb(17, 17, 17)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(0, 0, 0)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgb(46, 46, 46)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgb(17, 17, 17)",
      "popup": "rgb(23, 23, 23)",
      "popup_text": "rgb(255, 255, 255)",
      "icons": "rgb(255, 255, 255)",
      "ntp_text": "rgba(255, 255, 255, 0)",
      "popup_highlight": "rgb(232, 59, 59)",
      "tab_background_separator": "rgb(255, 255, 255)",
      "tab_loading": "rgba(255, 255, 255, 0)",
      "tab_selected": "rgb(17, 17, 17)",
      "toolbar_bottom_separator": "rgb(17, 17, 17)",
      "toolbar_field_border_focus": "rgb(233, 38, 38)",
      "toolbar_field_border": "rgb(17, 17, 17)",
      "toolbar_field_focus": "rgb(17, 17, 17)",
      "toolbar_field_highlight_text": "rgb(17, 17, 17)",
      "toolbar_field_highlight": "rgb(236, 67, 67)",
      "toolbar_field_separator": "rgb(219, 54, 54)",
      "toolbar_field_text_focus": "rgb(255, 255, 255)",
      "toolbar_top_separator": "rgb(17, 17, 17)",
      "toolbar_vertical_separator": "rgb(236, 59, 59)"
    }
  }
}