Improve recommendations and visuals in the `Onboarding` > Protecting a wallet > `hiding-sensitive-information`

[pavlenex]

Describe your content request

A community member on Slack, Justin, had a question about hiding balances.

Below is a conversation from Slack.

Link to the page
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https://bitcoin.design/guide/onboarding/protecting-a-wallet/#hiding-sensitive-information

Suggestions
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1. Improve the visuals to resemble wallet kit UI
2. Be a bit more explicit on what we recommend for hiding a balance on that page (it seems that's an eye icon)

Additional context

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[Bosch-0]

My 2 sats

I'm a fan of the 'hold balance' to hide and tap to switch units. If you are constantly switching units and have to skip past the hidden view as it is part of the 'tap' action its extra work the user needs to take. Holding is also more of a involved process, say if you were showing someone the app it would be much harder for them to tap and hold then just tap and see your balance. You could include a nudge the first time the user opens the app directing them to hold the balance to discover this feature.

[GBKS]

I think this one should be addressed via the larger page overhaul in #537. Let me know if you disagree, otherwise we can close this issue.