Why would anyone want to use a Spark Template for a T-shirt design? The quality would be worse than horrible.
You need real graphic/textile design software to create T-Shirt art. And do it in consultation with your print professional. They will need to provide you with exact artwork specifications (i.e. color profile, bleed, dimensions, file type, etc...).
I actually have never used Spark. I use Illustrator but I just now saw that this was part of the creative cloud package. All I want to know is if the templates are commercial free. Thank you for taking the time to respond.
I am hoping somebody out there could answer my question.
Adobe Stock would be a much better source for your T-Shirt artwork. With an Extended Licenseonly, Adobe Stock assets may be used in merchandise, templates or other products for resale. Standard and Enhanced Licenses are not sufficient.