“just adding i heard that even in some yeshivos in europe they wore colored shirts”
You don’t have to go back to Europe to find bachurim wearing colored shirts. Less than 30 years ago when I was in high school in Yeshiva of Staten Island many older bachurim wore blue and brown shirts. We used to debate who was a “greaseball” and one opinion was someone who wore brown pants and a blue shirt and vice versa.