
                               !!! IMPORTANT !!!
                               -----------------
Many of these prefixes will not work on the AMIGA and some platforms'
terminals but others will.

                          YOU USE THEM AT YOUR OWN RISK!
                          ------------------------------

ANSI escape 'prefix' codes, for the pfb() function.
Code:	Effect:				Notes:
-----	-------				------

0	Reset / Normal			all attributes off
1	Bold or increased intensity
2	Faint (decreased intensity)	Not widely supported.
3	Italic 	Not widely supported.	Sometimes treated as inverse.
4	Underline
5	Slow Blink			less than 150 per minute
6	Rapid Blink			MS-DOS ANSI.SYS; 150+ per minute;
					not widely supported
7	[[reverse video]]		swap foreground and background colors
8	Conceal				Not widely supported.
9 	Crossed-out			Characters legible, but marked for
					deletion. Not widely supported.
10 	Primary(default) font 
11–19	Alternate font			Select alternate font n-10
20	Fraktur				hardly ever supported
21	Bold off or Double Underline	Bold off not widely supported; double
					underline hardly ever supported.
22	Normal color or intensity	Neither bold nor faint
23	Not italic, not Fraktur
24	Underline off			Not singly or doubly underlined
25	Blink off
27	Inverse off
28	Reveal				conceal off
29	Not crossed out
# ---------------------------------------------------------------------------
51 	Framed
52 	Encircled
53 	Overlined
54 	Not framed or encircled
55 	Not overlined

# *************** Colour settings, foreground and background. ***************
30–37	Set foreground color
# ---------------------------------------------------------------------------
38	Set foreground color
			Next arguments are 5;<n> or 2;<r>;<g>;<b> - see below
# ---------------------------------------------------------------------------
39	Default foreground color	implementation defined
					(according to standard)
# ---------------------------------------------------------------------------
40–47 	Set background color
# ---------------------------------------------------------------------------
48	Set background color		
			Next arguments are 5;<n> or 2;<r>;<g>;<b> - see below
# ---------------------------------------------------------------------------
49	Default background color	implementation defined
					(according to standard)
# ===========================================================================
# Command line usage of numbers 38, 48, using the Python print() function....
# print("\033[38;2;0;0;0m\033[48;2;255;255;255mCustom colours.\033[0m")
# ....for normal use, OR....
# print("\033[1;38;2;0;0;0m\033[1;48;2;255;255;255mCustom colours.\033[0m")
# ....for bold/bright characters usage.
# Both are shown as black on white.
# ============================ Extended colours. ============================
# These are supported by default terminals, in at least, APPLE OSX 10.15.7
# and GNU/Linux Mint Cinnamon 22.3.
90–97	Set bright foreground color	aixterm (not in standard)
100–107	Set bright background color	aixterm (not in standard)
# ***************************************************************************

# ****************************** Of little use! *****************************
60	ideogram underline		hardly ever supported
61	ideogram double underline	hardly ever supported
62	ideogram overline		hardly ever supported
63	ideogram double overline	hardly ever supported
64	ideogram stress marking		hardly ever supported
65	ideogram attributes off		reset the effects of all of 60-64
# ***************************************************************************

