Examine source code of Blues Light

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Blue Light",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-017-2de428a06dc9ef685439af2292aab531.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(225, 234, 239)",
      "toolbar_text": "rgb(74, 36, 36)",
      "frame": "rgb(126, 187, 224)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgb(203, 203, 222)",
      "toolbar_field_text": "rgb(25, 25, 28)",
      "tab_line": "rgb(24, 13, 15)",
      "popup": "rgb(214, 215, 220)",
      "popup_text": "rgb(26, 26, 31)",
      "tab_loading": "rgb(24, 13, 15)"
    }
  }
}