gistfile1.js

const pages = [
  {
    image: "URL", // a 1x1 grid image
    cells: [
      {
        x: 0,
        y: 0,
        width: 100%
      }
    ]
  },
  {
    image: "URL", // a hybrid grid image
    cells: [
      {
        0: {
          x: 0,
          y: 0,
          width: 50%
        },
        1: {
          x: 200,
          y: 0,
          width: 50%
        }
      },
      {
        0: {
          x: 0,
          y: 0,
          width: 50%
        },
        1: {
          x: 200,
          y: 0,
          width: 25%
        },
        1: {
          x: 400,
          y: 0,
          width: 25%
        },
      }
    ]
  }
]