If a customer sets a color preference in our app, we'd like to be able to send their emails with the selected color in use. This helps us minimize email forgery for cases like invoices and receipts. I believe this could be achieved by having an advanced color option where a user can freely input an event property name in the vero email builder UI.

Ability to trigger send based on when a user has tended to open an email in past campaigns

The ability to see what the email looks like when the user has darkmode set as their preference in their email client. The ability to set the colors for dark mode.

Include a way for a user to return to a previously saved version of a workflow.

When creating or editing a workflow it would be useful to duplicate a specific logic or action node so I don't have to enter the same details again.

When creating a template, define snippets that can be added/re-ordered/deleted/edited by authors of campaign content without editing the underlying template

Release a full API that provides access to all elements of the UI programmatically.

Rather than a straight delay, add a node in Workflows that "waits until" a user has triggered an event or a specific time has been reached.