Examine source code of Ronin Art

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Ronin Art",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "center center"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(253, 228, 199)",
      "toolbar_text": "rgba(0, 0, 0, 0.79)",
      "frame": "rgb(219, 143, 122)",
      "tab_background_text": "rgb(0, 0, 0)",
      "toolbar_field": "rgb(255, 208, 208)",
      "toolbar_field_text": "rgb(75, 15, 15)",
      "tab_line": "rgb(243, 123, 5)",
      "popup": "rgb(253, 220, 178)",
      "popup_text": "rgb(0, 0, 0)",
      "tab_loading": "rgb(243, 123, 5)"
    }
  }
}