Self-hosted Invoice Ninja watermark

Hey there, quick question:

On the commercial Invoice Ninja site (the .com, not the .org) it says:

All Pro and Enterprise features from the hosted app are included in the open-source code.

(link)

Does that mean I can legally remove the watermark on a self-hosted install without needing to buy a license?

You have the source code so you could, but that would be unethical. I just pay the $20 per year.

Ok, so that means I may not remove it. I was just confused by this sentence I quoted since I thought “no watermark” was a feature of the Pro version. I have no interest in violating the license agreement. $20 a year seems fair.