Examine source code of Orange Blur Effect

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Orange Blur Effect",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(40, 129, 169, 0)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(255, 71, 0)",
      "tab_background_text": "rgb(96, 84, 74)",
      "toolbar_field": "rgba(241, 230, 227, 0.36)",
      "toolbar_field_text": "rgba(53, 51, 49, 0.85)",
      "tab_line": "rgba(255, 128, 0, 0)",
      "popup": "rgb(255, 71, 0)",
      "popup_text": "rgb(255, 255, 255)",
      "button_background_active": "rgba(255, 144, 6, 0.67)",
      "button_background_hover": "rgba(242, 236, 231, 0.25)",
      "sidebar_highlight_text": "rgb(255, 255, 255)",
      "sidebar_highlight": "rgb(255, 71, 0)",
      "sidebar_text": "rgb(255, 71, 0)",
      "sidebar": "rgb(255, 255, 255)",
      "tab_loading": "rgb(255, 255, 255)",
      "tab_selected": "rgba(251, 250, 255, 0.21)",
      "toolbar_bottom_separator": "rgba(79, 195, 247, 0)",
      "toolbar_field_border_focus": "rgb(53, 51, 49)",
      "toolbar_field_focus": "rgb(250, 147, 115)",
      "toolbar_field_highlight_text": "rgb(255, 255, 255)",
      "toolbar_field_highlight": "rgb(255, 71, 0)",
      "toolbar_field_separator": "rgb(96, 84, 74)",
      "toolbar_field_text_focus": "rgb(96, 84, 74)",
      "toolbar_top_separator": "rgba(79, 195, 247, 0)"
    }
  }
}