Examine source code of blue/grey chill theme

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "blue faded",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-009-f069b97f439938a011297c84464f0df6.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(159, 165, 195)",
      "toolbar_text": "rgb(86, 86, 86)",
      "frame": "rgb(154, 160, 199)",
      "tab_background_text": "rgb(82, 82, 82)",
      "toolbar_field": "rgb(170, 173, 201)",
      "toolbar_field_text": "rgb(84, 84, 84)",
      "tab_line": "rgb(135, 135, 135)",
      "popup": "rgb(169, 171, 198)",
      "popup_text": "rgb(222, 222, 222)",
      "tab_loading": "rgb(135, 135, 135)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{1076ca96-412d-4df0-b0c3-0c13082804e7}"
    }
  }
}