Yeah, what this really shows is that flags are not nearly as precise as we sometimes imagine them to me. For instance, most old heraldic crests and flags have

Yeah, what this really shows is that flags are not nearly as precise as we sometimes imagine them to me. For instance, most old heraldic crests and flags have their official formats described in plain text: "Blazon or, three lions passant guardant azure, langued and armed gules." That's the final word on the matter. It's then up to the flag maker to read that and create it correctly. This can result in flags that look subtly different, with variations in how lions or whatever were drawn. Google "Royal Banner of Scotland" and you'll see a number of variations in how the red lion is drawn. Ditto, say, "Coat of arms of Finland." These days those Google searches will show more and more the same images, with the Wikipedia effect (or general internet) but you can still find a wealth of examples of how different they used to be.