The capslok led is very small! its one of the smallest leds i have ever seen... but if a suitable blu led can be found i dont see why it cant be changed!
The other problem is these blu leds are the standard round type and i have never seen anything that comes close to the type that commodore used on the amigas
I have been toying with the idea of putting a small bit of lexan/plexi glass under where the leds are on my 1200 and fitting the blu leds in anyway!.... dont know if it will look good or not?