Examine source code of cottagecore ditzy blue

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "cottagecore ditzy blue",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "center center"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(120, 172, 204, 0.75)",
      "toolbar_text": "rgb(0, 0, 0)",
      "frame": "rgb(128, 176, 164)",
      "tab_background_text": "rgb(0, 0, 0)",
      "toolbar_field": "rgba(102, 162, 83, 0.66)",
      "toolbar_field_text": "rgb(253, 242, 221)",
      "tab_line": "rgba(120, 172, 204, 0.7)",
      "popup": "rgba(120, 172, 204, 0.75)",
      "popup_text": "rgb(0, 0, 0)",
      "ntp_background": "rgba(102, 162, 83, 0.66)",
      "tab_loading": "rgba(120, 172, 204, 0.7)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{b496dcba-2464-40cf-9e7e-931eee749c50}"
    }
  }
}