[
    {
      "prompt": "Quantity and potential of some substance",
      "style": "rounded-square",
      "colour": "white",
      "border": "#FF0000"
    },
    {
      "prompt": "Flow of some substance",
      "style": "rounded-square",
      "colour": "white",
      "border": "#00B050"
    },
    {
      "prompt": "Flow of a substance via a chemical reaction",
      "style": "rounded-square",
      "colour": "white",
      "border": "#042433"
    },
    {
      "prompt": "Flow of water",
      "style": "line",
      "colour": "#0070C0"
    },
    {
      "prompt": "Flow of sodium ions",
      "style": "line",
      "colour": "#3B7D23"
    },
    {
      "prompt": "Signalling path",
      "style": "line",
      "colour": "#3B7D23",
      "dashed": "true"
    },
    {
      "prompt": "Stoichiometry",
      "style": "circle",
      "colour": "#8ED973"
    },
    {
      "prompt": "Organ system",
      "style": "rounded-square",
      "colour": "#F2F2F2",
      "border": "#BF9000"
    },
    {
      "prompt": "Tissue exchange system",
      "style": "rounded-square",
      "colour": "#F8E4F6",
      "border": "#3B7D23"
    }
]