Add custom types

Go to Settings > Developer and paste your types definition in json. Then press save and reload the page.

Example types.json:

{
  "TransactionInput": {
    "parent_output": "Hash",
    "signature": "Signature"
  },
  "TransactionOutput": {
    "value": "u128",
    "pubkey": "Hash",
    "sale": "u32"
  },
  "Transaction": {
    "inputs": "Vec<TransactionInput>",
    "outputs": "Vec<TransactionOutput>"
  }
}