Examine source code of Moon Cat v2

{
  "manifest_version": 2,
  "version": "1.1",
  "name": "Moon Cat v2",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(178, 197, 225, 0.7)",
      "toolbar_text": "rgb(19, 51, 127)",
      "frame": "rgb(246, 249, 249)",
      "tab_background_text": "rgb(98, 193, 241)",
      "toolbar_field": "rgb(246, 249, 249)",
      "toolbar_field_text": "rgb(0, 0, 0)",
      "tab_line": "rgb(12, 182, 237)",
      "popup": "rgb(255, 255, 255)",
      "popup_text": "rgb(0, 0, 0)",
      "ntp_background": "rgba(255, 255, 255, 0)",
      "tab_loading": "rgb(12, 182, 237)"
    }
  }
}