One thing I loved about 1Password in terms of it's UI was the fact that it grabbed the website favicon for any entries with a URL in them. That would eliminate (or replace) the need for specific icons and having to keep them updated or maintained. I think it'd be a nice addition to the UI for Enpass.
Beside supporting add custom logo/icon then It's awesome if Enpass can get logo/icon from site when user adds new record automaticall or allow user update icon/logo of existing record via "update icon" button.
I remmenber 1Password also support this feature.