Soo my Interface is just a dump of free stuff? Well thank you
It's just like you guys mentioned. The liscence of the font i used allows commercial-purpose for graphics texts etc. So technically it is okay (besides including it in the package) to use it for selling graphics, which it just are. I also see heaps of flaticon-icons already, so that there won't be a single Interface that could be 100%secure
I'm sorry Beaverlicious, I thought you were reselling a free font separately! I see now that you're using it as part of your work. Forgive me for my confusion!
In that case, I agree with you: I don't think you're in violation of anything. If the font you used has a license that allows you to use it for other projects, including commercial ones, and also allows you to redistribute it as part of your project, you're in the clear. The only thing you can't do is resell the font by itself, and you're not doing that - you're using the font as part of some work that you did - the font is fulfilling the exact purpose it was designed for, the fact that you need to redistribute it is a mere technicality.
However, examining the contract linked by shinkan:
[quote:2pa3mwih]1.4: If the Fonts are free, you may distribute the Fonts within the same company or household, provided this license agreement is included.
That could be a problem.
[quote:2pa3mwih]2.4: Embedding of the Fonts in documents (e.g. PDF files) is permitted for viewing and printing, but not for editing. If someone at a remote location wants to edit a document which contains embedded Fonts, they must purchase their own license. Internal corporate documents with embedded Fonts may of course be edited on licensed workstations.
So you can't make editable content with that font, unless of course all your customers become licensed users of said font by purchasing it for the incredibly steep price of free (that was sarcasm by the way, their agreement is dumb).
[quote:2pa3mwih]2.5: You may not rent, lease, sub-license, distribute, disseminate, give away or lend the Fonts. You may permanently transfer the Fonts provided the recipient accepts the terms of this agreement, and if you delete all your copies of the Fonts.
This kills you. You can't use the fonts at all in that manner! They don't even make concessions for free fonts! Might want to contact them and see if they can alter their agreement, but unless they do so, you cannot include the font files, just the PNGs generated with it.
An common solution seen in many sites is to just not include the font, and add a README.TXT or FONTS.TXT including the links to where you can download the fonts yourself. This frees you from any liabilities and makes your content suddenly legal, since photoshop doesn't pack the fonts with the PSD (unless you tell it to).