Examine source code of Cool Complementary

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Cool Complementary",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-010-e9f94a3e61666a4c7677eb9cce17d854.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(235, 166, 166, 0.38)",
      "toolbar_text": "rgb(250, 255, 1)",
      "frame": "rgb(0, 0, 71)",
      "tab_background_text": "rgb(238, 249, 107)",
      "toolbar_field": "rgba(0, 0, 71, 0.51)",
      "toolbar_field_text": "rgba(250, 181, 22, 0.52)",
      "tab_line": "rgba(118, 8, 2, 0.52)",
      "popup": "rgba(248, 250, 126, 0.85)",
      "popup_text": "rgba(0, 0, 170, 0.69)",
      "tab_loading": "rgba(118, 8, 2, 0.52)"
    }
  }
}