Making a UI mock-up in Graphviz

I’m completely new to Graphviz.

I would like to write code for a series of diagrams - ideally exported as a powerpoint presentation / slideshow.

It’s meant to be a mock-up for an app’s UI.

So slide 1 is some text in a box; slide 2 is sort of a flow chart, multiple connected text boxes; and so on. Should support color, some of the words will have a specific color.

Is Graphviz good for this?

Is there a convenient way to export a series of diagrams as some open source slideshow format, for example?

Thanks very much

I don’t think Graphviz would be good for this. You could do multiple graphs and export to multiple pdf pages, I guess. But it would be very uphill, not what the language is designed for.