Examine source code of Awesome Colors

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Awsesome Colors",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-045-3e6898966e6ccdc87f80d23d4e7a6a49.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(193, 169, 169, 0.64)",
      "toolbar_text": "rgba(0, 0, 0, 0.75)",
      "frame": "rgb(82, 229, 225)",
      "tab_background_text": "rgb(101, 33, 112)",
      "toolbar_field": "rgba(255, 255, 255, 0.37)",
      "toolbar_field_text": "rgb(255, 0, 0)",
      "tab_line": "rgb(0, 170, 255)",
      "popup": "rgb(255, 255, 255)",
      "popup_text": "rgb(5, 124, 167)",
      "tab_loading": "rgb(0, 170, 255)"
    }
  }
}