Admittedly, I 'm pretty conservative when it comes to color and design, but my biggest concern about going with a yellow seat bag--beyond it potentially detracting from the frame itself, which should be the star of the show--is that it would get dirty. My seat bag gets pretty filty, which is why I buy them in black mostly.
Live with intention. Walk to the edge. Listen hard. Practice wellness. Play with abandon. Laugh. Choose with no regret. Continue to learn. Appreciate your friends. Do what you love. Live as if this is all there is.
--Mary Anne Radmacher