Examine source code of Mermaid Ave

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Mermaid Ave",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-034-e0dfa84411058d2e5627f19f1ea501ca.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(23, 14, 61)",
      "toolbar_text": "rgba(255, 213, 32, 0.88)",
      "frame": "rgb(28, 7, 255)",
      "tab_background_text": "rgb(213, 227, 175)",
      "toolbar_field": "rgb(8, 5, 24)",
      "toolbar_field_text": "rgb(163, 174, 243)",
      "tab_line": "rgb(28, 0, 255)",
      "popup": "rgb(9, 9, 25)",
      "popup_text": "rgba(255, 213, 32, 0.99)",
      "button_background_active": "rgba(210, 255, 238, 0.96)",
      "button_background_hover": "rgb(11, 62, 247)",
      "frame_inactive": "rgb(81, 23, 202)",
      "icons_attention": "rgb(231, 9, 80)",
      "icons": "rgb(50, 159, 251)",
      "ntp_text": "rgb(93, 49, 159)",
      "popup_border": "rgb(124, 118, 171)",
      "popup_highlight_text": "rgb(57, 21, 209)",
      "popup_highlight": "rgb(255, 213, 32)",
      "sidebar_border": "rgb(139, 118, 171)",
      "sidebar_highlight_text": "rgb(255, 213, 32)",
      "sidebar_highlight": "rgb(212, 223, 179)",
      "sidebar_text": "rgba(3, 47, 64, 0.86)",
      "tab_loading": "rgb(28, 0, 255)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{e3d8485e-dff5-40cf-8eed-51d549f71d24}"
    }
  }
}