Examine source code of palms2

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "palms2",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right center"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(209, 21, 141, 0.1)",
      "toolbar_text": "rgb(46, 255, 15)",
      "frame": "rgb(60, 255, 31)",
      "tab_background_text": "rgb(60, 255, 31)",
      "toolbar_field": "rgba(70, 39, 101, 0.18)",
      "toolbar_field_text": "rgb(60, 255, 31)",
      "tab_line": "rgb(60, 255, 31)",
      "popup": "rgb(128, 58, 183)",
      "popup_text": "rgb(60, 255, 31)",
      "tab_loading": "rgb(60, 255, 31)"
    }
  }
}