Describe your content request

While reviewing wallets in #493 I noticed that one of the suggestion we commonly make is that wallets need to be clearly transparency on the fees they may be taking from the users.

The only page where we mention transparency is on the principles page, so I'm unsure if this needs to be added in the screens somewhere?

Link to the page

https://bitcoin.design/guide/designing-products/principles/#transparency

Suggestions
Add that wallet developers should be transparent about the fees in the bullet list, don's and don't. Alternatively see if we can update other screens or pages with this important point.

Additional context

Add any other context about the request here.

Content guidelines
If you're a contributor looking to tackle the issue, you can preview our content guidelines.