Examine source code of Totk Black Circle Pattern

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Zelda Totk Black Circle Pattern",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(255, 255, 255, 0.43)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(0, 0, 0)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgba(57, 57, 57, 0.85)",
      "toolbar_field_text": "rgb(63, 182, 145)",
      "tab_line": "rgb(63, 182, 145)",
      "popup": "rgba(0, 0, 0, 0.62)",
      "popup_text": "rgba(255, 255, 255, 0.96)",
      "button_background_active": "rgba(63, 182, 145, 0.74)",
      "button_background_hover": "rgba(217, 217, 217, 0.64)",
      "icons_attention": "rgb(63, 182, 145)",
      "icons": "rgb(255, 255, 255)",
      "ntp_background": "rgb(55, 54, 54)",
      "ntp_text": "rgb(255, 255, 255)",
      "popup_border": "rgba(255, 255, 255, 0.7)",
      "popup_highlight_text": "rgb(255, 255, 255)",
      "popup_highlight": "rgb(63, 182, 145)",
      "tab_loading": "rgb(63, 182, 145)",
      "tab_selected": "rgba(63, 182, 145, 0.5)",
      "tab_text": "rgb(255, 255, 255)",
      "toolbar_bottom_separator": "rgb(63, 182, 145)",
      "toolbar_field_border": "rgba(255, 255, 255, 0.81)",
      "toolbar_field_focus": "rgba(255, 255, 255, 0.81)",
      "toolbar_field_highlight_text": "rgba(255, 255, 255, 0.99)",
      "toolbar_field_highlight": "rgb(63, 182, 145)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{d11308a3-3703-4f9a-a0a6-c2620dcc9131}"
    }
  }
}