On the process of transitioning from the famfamfam set to Kreative Vexillo, one of things that stood out is that Switzerland's flag is no longer showing as being square.
I realize that the goal is to make all flags being uniform in size (and there's even a set for keeping the original ratio). But, there's a counter-example: that doesn't seem to happen with Nepal's flag, which keeps the non-flag area fully transparent as to keep its shape: its not just stretched out (albeit, admittedly, Nepal is really a special case).
Looking at Apple's and Twitter emojis, they seem to keep that flag square-ish too. And while writing this, I learned that the same applies to Vatican's flag as it's also square.
Anyhow, I'm not sure if in Kreative Vexillo this is by design or if there's something that can be done. Either way, it's not a big issue, but thought of reporting it nonetheless.