FreeBSD: Colourful console

Rise history size to 1000. Change console text to green. Read inverted documentation as yellow. Kernel messages will be blue.

Recompile kernel with these options:

options SC_HISTORY_SIZE=1000
options SC_NORM_ATTR=(FG_LIGHTGREENBG_BLACK)
options SC_NORM_REV_ATTR=(FG_YELLOWBG_BLACK)
options SC_KERNEL_CONS_ATTR=(FG_LIGHTBLUEBG_BLACK)
options SC_KERNEL_CONS_REV_ATTR=(FG_LIGHTREDBG_BLACK)