Examine source code of Sleek Blue

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Sleek Blue",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-026-829b05416f823e170310e7c826ad1bec.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(24, 29, 33, 0.17)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(42, 77, 86)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgba(114, 161, 174, 0.81)",
      "toolbar_field_text": "rgb(0, 0, 0)",
      "tab_line": "rgb(135, 226, 209)",
      "popup": "rgba(52, 81, 81, 0.77)",
      "popup_text": "rgb(216, 216, 222)",
      "button_background_active": "rgba(45, 123, 176, 0.77)",
      "button_background_hover": "rgba(41, 135, 143, 0.77)",
      "icons_attention": "rgb(255, 255, 255)",
      "icons": "rgb(255, 255, 255)",
      "ntp_background": "rgb(42, 77, 86)",
      "ntp_text": "rgba(246, 252, 252, 0.66)",
      "popup_highlight": "rgb(165, 192, 199)",
      "sidebar_border": "rgb(255, 255, 255)",
      "sidebar_text": "rgb(255, 255, 255)",
      "sidebar": "rgb(35, 81, 81)",
      "tab_selected": "rgba(136, 179, 179, 0.42)",
      "tab_loading": "rgb(135, 226, 209)"
    }
  }
}