Well, in that case, you can inspect them in the ryzom assets site to find out what the dimensions are, and make new ones. Since they're in the client you could compile the client and change them in your viewpoint if nothing else. (Not necessarily true if you are in Windoz, since I'm not sure we can compile the windoz client.)
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Remembering Tyneetryk
Phaedreas Tears - 15 years old and first(*) of true neutral guilds in Atys.
(*) This statement is contested, but we are certainly the longest lasting.
<clowns | me & you | jokers>