include start
call OK start_color
call4 OK 0 0 0 color_content $COLOR_BLACK
call4 OK 1000 0 0 color_content $COLOR_RED
call4 OK 0 1000 0 color_content $COLOR_GREEN
call4 OK 1000 1000 0 color_content $COLOR_YELLOW
call4 OK 0 0 1000 color_content $COLOR_BLUE
call4 OK 1000 0 1000 color_content $COLOR_MAGENTA
call4 OK 0 1000 1000 color_content $COLOR_CYAN
call4 OK 1000 1000 1000 color_content $COLOR_WHITE