Question about avatar extension and animation

[Nightmares]

So I know the gif has to be exactly 100 x 100 to work, so if I bought the extension, would the gif then have to be 150 x 150?

 

[Goth]

Yes it would I think it has to be active and people make it hidden so it wont be in their inventory

 

[BungoTheElf]

No it would be 150 x 100 because it's width only

 

[Nightmares]

No it would be 150 x 100 because it's width only

Thanks!