Pinegrow theme creation for Wordpress?

Question

Web development

Hello.
Are there people who can help you get used to this editor?
For example, the first question is why, at the output of exporting a theme from Pinegrow, so much data is exported, despite the fact that the theme is generally clean, just a "white form" for the experiment, but the size of the theme from Pinegrow crashes to 4.7 meters. The folder with pictures is incomprehensible, the scripts were stuffed with stuff and stuff, while I repeat that the theme does not contain any added elements or scripts or code, just a blank sheet.