Sandy Pleyte

@m9710797 @nataliapc so what's the status of this PR? can it be merged after fixing the conflicts? would be nice to have TSX support (after almost 4 years) since a...

hehehe :) The first one is CocoaMSX running, the second image a screenshot taken with CocoaMSX of the same screen. This is a screenshot taken with openMSX v0.13 

It depends on the https://github.com/genemu/GenemuFormBundle bundle (for the form_stylesheet and form_javascript twig functions), but it's not defined in the composer.json. But after adding the missing bundle I don't get any...