Examine source code of Simple Blue

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Simple Blue",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-000-5672c42860d5b06e1058dc477397f3ef.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(25, 25, 25)",
      "toolbar_text": "rgb(224, 240, 255)",
      "frame": "rgb(19, 31, 51)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgb(25, 43, 60)",
      "toolbar_field_text": "rgb(0, 200, 255)",
      "tab_line": "rgb(0, 145, 255)",
      "popup": "rgb(25, 25, 25)",
      "popup_text": "rgb(224, 240, 255)",
      "button_background_active": "rgb(28, 124, 154)",
      "button_background_hover": "rgb(24, 94, 115)",
      "frame_inactive": "rgb(29, 29, 29)",
      "icons_attention": "rgb(11, 207, 255)",
      "icons": "rgb(4, 180, 255)",
      "ntp_background": "rgb(46, 73, 93)",
      "popup_border": "rgb(32, 199, 255)",
      "sidebar_border": "rgb(37, 37, 37)",
      "sidebar_text": "rgb(224, 240, 255)",
      "sidebar": "rgb(26, 26, 26)",
      "tab_loading": "rgb(0, 200, 255)",
      "tab_selected": "rgba(0, 145, 255, 0.18)",
      "toolbar_field_focus": "rgb(16, 23, 33)",
      "toolbar_top_separator": "rgb(95, 186, 255)"
    }
  }
}