{
  "title": "My Gallery",
  "groups": {
    "group1": [
      {
        "id": "group1_title1",
        "title": "Group 1, Title 1",
        "uri": "white.jpg",
        "brief": "brief_text_1"
      },
      {
        "id": "group1_title2",
        "title": "Group 1, Title 2",
        "uri": "thumb12.jpg"
      }
    ],
    "group2": [
      {
        "id": "group2_title1",
        "title": "Group 2, Title 1",
        "uri": "alpha.png",
        "value": "abcd"
      },
      {
        "id": "group2_title2",
        "title": "Group 2, Title 2",
        "value": "bcde",
        "brief": "brief_text_2"
      },
      {
        "id": "group2_title3",
        "title": "Group 2, Title 3",
        "value": "aabb"
      }
    ]
  },
  "pictures": [
    {
      "uri": "white.jpg",
      "datetime": "2019:07:22 09:41:31",
      "group1": "group1_title1",
      "group2": "group2_title2"
    },
    {
      "uri": "./alpha.png",
      "datetime": "2020:06:19 07:51:05",
      "value": false,
      "group1": "group1_title2",
      "group2": "group2_title2"
    },
    {
      "uri": "pic3.jpg",
      "datetime": "2020:06:20 18:14:09",
      "value": true,
      "group1": "group1_title2",
      "group2": "group2_title1"
    },
    {
      "uri": "sample-db.json",
      "datetime": "2020:06:20 06:09:54",
      "value": true,
      "group1": "group1_title2",
      "group2": "group2_title3"
    },
    {
      "datetime": "2019:07:22 09:45:17",
      "group1": "group1_title1",
      "group2": "group2_title3"
    }
  ]
}