Yes. But. For an iDE you write your own code. For a visual tool like this, I wonder if the “code” is already written and it just spits out code snippets it contains. So the code would all be GPL?
They are. However, when code is generated there need to be an explicit clause in the license terms for the same. Else, by default, the generated code would be subject to the same license, GPL v3 in this case. I therefore recommend the authors to review the licensing terms with lawyers.
(plenty of IDEs are covered under GPL). https://en.wikipedia.org/wiki/Comparison_of_integrated_devel...