Examine source code of Black Wave Plus

{
  "manifest_version": 2,
  "version": "2.0",
  "name": "Black Wave",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-028-5466583598afcc175c90e35aceb1246b.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgba(26, 26, 26, 0.88)",
      "toolbar_field": "rgba(0, 153, 255, 0.21)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgb(5, 60, 102)",
      "popup": "rgb(26, 26, 26)",
      "popup_text": "rgb(255, 255, 255)",
      "tab_loading": "rgb(5, 60, 102)",
      "bookmark_text": "rgb(255, 255, 255)",
      "frame": "rgb(53, 53, 53)",
      "tab_background_text": "rgb(255, 255, 255)"
    }
  }
}