I work, I learn in my spare time, and I learn quite a bit B”H. I wear a white shirt by choice, not to tell anyone about myself, not because I believe it means anything special. I have several friends who wear colored shirts, and they learn a lot more than quite a few white-shirted acquaintances. Their davening is also quite a bit more sincere. No, I’m not judging what occurs between them and HKB”H. But you can detect seriousness in someone’s tefilah, as opposed to the rote, habitual, robotic practice that allows for daydreaming, talking during davening, etc.
I am scouring whatever literature there is about white shirts to see what Torah value it really means. Haven’t found anything yet. The only reference to any white clothing is the Ari Zal who stated that it is appropriate to wear 4 white garments on Shabbos. Anything I missed? Please enlighten.