Vastly superior LED technology?

Like when displays are invisible in bright sunlight, or the diodes burn
out (as on the Central Line trains) and in all cases the letters and
numerals are depicted in a clumsy, angular script? (And never mind the
fact that they often don't show up on photographs either.)

Roll-on (literally) roller blinds, and while we're at it let's return
to the proper colours of black and WHITE too!