A “W” has been inserted in X City between the 2 X’s that provide the sprawling Maebaleia/Satori crossroads metropolis its name, highlighting, as it were, the X shaped crossroads kind of in the middle of them, the only one on the continent as a whole.
Tessa teleports in, but only finds a smiley face there (Smiley, or perhaps MOM). She had to turn her back on it to get a good picture of the “W” on the inworld map and apologized beforehand, saying she meant no offense and that her directional shadow would get in the way otherwise. She made a note to send the round yellow being a copy of her Beige Magic book later on, because Black would be too dangerous, perhaps make her unhappy in the long shot. Best Beige for the chips and putts, and Brown at most for the irons/middle game. Black is reserved for the woods, the big gunns.
Here’s Tessa’s picture — she’s at the yellow dot in Zugspitze with the, ah, yellow dot, hmm. And, yes, I suppose she’s still dreaming all of this, hence the Brown, Beige, Black for a clearly inanimate object.
Tessa later figures out she is the smiling face: Smiley. And also her half-sister. Maybe even more the latter (hmm, again).