I think this new shader file just replaces the "more_crosshairs.shader" in the "more_crosshairs.pk3"
Instead of having 6 different coloured copies of the same crosshair, you only need the one white copy and the shader will do the rest, making crosshair00.tga to crosshair59.tga obsolete.
yep.. they will just take crosshaira.tga to crosshairj.tga and color them in red, yellow, cyan, green, blue or purple.. the patch makes the qvm cycle through crosshaira to crosshairj and then through crosshair%02d from 0 to 59..