Examine source code of Simple soft blue

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "LACR",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-000-5672c42860d5b06e1058dc477397f3ef.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(225, 234, 239, 0.41)",
      "toolbar_text": "rgb(24, 53, 66)",
      "frame": "rgb(60, 105, 134)",
      "tab_background_text": "rgb(199, 215, 221)",
      "toolbar_field": "rgb(255, 255, 255)",
      "toolbar_field_text": "rgb(4, 39, 51)",
      "tab_line": "rgb(138, 227, 255)",
      "popup": "rgb(225, 234, 239)",
      "popup_text": "rgb(60, 105, 134)",
      "button_background_active": "rgb(103, 129, 134)",
      "button_background_hover": "rgb(146, 195, 211)",
      "icons_attention": "rgb(77, 218, 191)",
      "ntp_background": "rgb(199, 215, 221)",
      "popup_border": "rgb(77, 218, 191)",
      "popup_highlight_text": "rgb(16, 60, 170)",
      "popup_highlight": "rgb(77, 218, 191)",
      "sidebar_border": "rgb(61, 81, 89)",
      "sidebar_highlight_text": "rgb(16, 60, 170)",
      "sidebar_highlight": "rgb(146, 195, 211)",
      "sidebar_text": "rgb(23, 60, 77)",
      "sidebar": "rgb(199, 215, 221)",
      "tab_loading": "rgb(138, 227, 255)"
    }
  }
}