init_num initializes basic numeric parameters;
txt contains current text information;
init_txt initializes text information;
pal contains current color information;
init_pal initializes color information;
freq contains current frequency information;
comp_freq computes current frequency information;
prob contains current probability information;
comp_prob computes current probability information.
Other lists containing current scenario information: accu,
freq, pal_bw,
pal_kn, pal_mbw,
pal_mod, pal_org,
pal_rgb, pal_vir,
pal, prob,
txt_TF, txt_org,
txt