[
  [
    {
      "units": 0.5,
      "type": "spacer"
    },
    {
      "legend": "esc"
    },
    {
      "legend": "Q"
    },
    {
      "legend": "W"
    },
    {
      "legend": "E"
    },
    {
      "legend": "R"
    },
    {
      "legend": "T"
    },
    {
      "legend": "Y"
    },
    {
      "legend": "U"
    },
    {
      "legend": "I"
    },
    {
      "legend": "O"
    },
    {
      "legend": "P"
    },
    {
      "legend": "Å"
    },
    {
      "legend": "backspace"
    }
  ],
  [
    {
      "units": 0.75,
      "type": "spacer"
    },
    {
      "legend": "tab"
    },
    {
      "legend": "A"
    },
    {
      "legend": "S"
    },
    {
      "legend": "D"
    },
    {
      "legend": "F"
    },
    {
      "legend": "G"
    },
    {
      "legend": "H"
    },
    {
      "legend": "J"
    },
    {
      "legend": "K"
    },
    {
      "legend": "L"
    },
    {
      "legend": "Ö"
    },
    {
      "legend": "Ä"
    },
    {
      "legend": "* '"
    }
  ],
  [
    {
      "units": 0.25,
      "type": "spacer"
    },
    {
      "legend": "l_s"
    },
    {
      "legend": "<  >"
    },
    {
      "legend": "Z"
    },
    {
      "legend": "X"
    },
    {
      "legend": "C"
    },
    {
      "legend": "V"
    },
    {
      "legend": "B"
    },
    {
      "legend": "N"
    },
    {
      "legend": "M"
    },
    {
      "legend": ","
    },
    {
      "legend": "."
    },
    {
      "legend": "-"
    },
    {
      "legend": "r_s"
    }
  ],
  [
    {
      "legend": "fn"
    },
    {
      "legend": "ctrl"
    },
    {
      "legend": "alt"
    },
    {
      "legend": "cmd"
    },
    {
      "legend": "fn"
    },
    {
      "legend": "space"
    },
    {
      "legend": "enter"
    },
    {
      "legend": "fn"
    },
    {
      "legend": "alt"
    },
    {
      "legend": "left"
    },
    {
      "legend": "right"
    },
    {
      "legend": "up"
    },
    {
      "legend": "down"
    }
  ]
]

Add staggered single-unit only 45% layout
Add staggered single-unit only 45% layout
