Feature request: include keystore labels in animated QR exports

[seedhammer]

The BCR-2020-007 format for crypto-hdkey includes an optional name value:

	? name: text,                        ; A short name for this key.

We'd like to include keystore labels in our steel engravings, for which it would be nice if Sparrow exported them. I suppose the same information could be included in PDF backups, so labels are restored from backups.

[craigraw]

As of 4bec71e, Sparrow will now read the name value from scanned ur:crypto-hdkeys and set the keystore label if present. Sparrow does not currently show xpubs as ur:crypto-hdkey QRs however due to the need for wide compatibility.

Using this field for keystore labels in ur:crypto-output is a good idea too, so keeping this open for now.

[seedhammer]

Thank you. Indeed I wasn't clear: the feature request is about amending the ur:crypto-output QRs, not individual xpub QRs (which we don't use).

[seedhammer]

Gentle ping. We'd love to start engraving titles on our plates, but no wallet supports ur:crypto-output titles yet. If you still think it's a good idea, having this feature in Sparrow would allow us to implement support on our end and nudge other wallets :)

[satscoffee]

Would love to this feature so we could generate titles upon export!

[craigraw]

Implemented in 76dc294. Sparrow will now export keystore labels in displayed ur:crypto-output QRs (including PDF exports), and import keystore labels if present in the ur:crypto-hdkey components of scanned ur:crypto-output QRs. Note that Sparrow restricts keystore labels to 16 characters, and ensures that they are unique.