Examine source code of rainbow_texture

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "rainbow_texture",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/0.jpg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "right top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(18, 17, 18, 0.3)",
      "toolbar_text": "rgba(251, 248, 250, 0.65)",
      "frame": "rgb(62, 31, 42)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgb(62, 31, 42)",
      "toolbar_field_text": "rgb(239, 239, 248)",
      "tab_line": "rgba(71, 159, 99, 0.58)",
      "popup": "rgb(30, 51, 43)",
      "popup_text": "rgb(253, 250, 252)",
      "tab_loading": "rgba(71, 159, 99, 0.58)"
    }
  }
}