Considering how utterly amazing HubSpot is at everything else, I'm a little disappointed by the grey, ugly lead flows.
Here's an example of what we have had in the past.
Wouldn't it be great if the whole content area of the lead flow could be an image?
And what about a gradient overlay on the page when the popup appears?
These could be nice additions to the options of what's possible to customise the content a bit more. The current options just look a bit... Windows 95.