This is a pet peeve of mine, but I really hate when products like this don't affix a prefix to their tool description.

As in this isn't a "design" tool. It's a "front end" design tool or "UI/UX" design tool.

I may be flamed for this opinion, but seriously, stop referring to GUI/front-end design as just "design." There are a lot of people that are designing different things and it sucks when we search for new tooling and only get the next GUI tool.

Like when I read your title, my first instinct was that it was a CAD/EDA tool.

edit: <\gripe> this is a really cool product idea and clean implementation from the looks of it. imho quality/easy docs are the difference between loving a job and burnout!