Examine source code of Oasis

{
  "manifest_version": 2,
  "version": "1.2",
  "name": "Oasis",
  "theme": {
    "images": {
      "additional_backgrounds": [
        "images/bg-011-d53e0d0d1538ed554a90e056a2f04eca.svg"
      ]
    },
    "properties": {
      "additional_backgrounds_alignment": [
        "top"
      ],
      "additional_backgrounds_tiling": [
        "repeat"
      ]
    },
    "colors": {
      "toolbar": "rgb(43, 64, 79)",
      "toolbar_text": "rgb(255, 233, 153)",
      "frame": "rgb(21, 33, 40)",
      "tab_background_text": "rgb(255, 251, 235)",
      "toolbar_field": "rgb(21, 33, 40)",
      "toolbar_field_text": "rgb(255, 251, 235)",
      "tab_line": "rgb(255, 202, 10)",
      "popup": "rgb(43, 64, 79)",
      "popup_text": "rgb(255, 251, 235)",
      "icons_attention": "rgb(255, 202, 10)",
      "popup_border": "rgb(255, 202, 10)",
      "popup_highlight_text": "rgb(255, 233, 153)",
      "popup_highlight": "rgb(43, 64, 79)",
      "tab_selected": "rgb(43, 64, 79)",
      "toolbar_field_border": "rgb(255, 202, 10)",
      "tab_loading": "rgb(255, 202, 10)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{f1861841-7045-468e-bc6c-4c6180642332}"
    }
  }
}