Why can't I get high-intensity with SHOW?

[Boaz Bezborodko]

I'm trying to put a high intensity green character on the screen of a FP 
Windows app using some variation of the control codes \F, \B, \A, and 
\I, but nothing I do will generate a high-intensity color character.  
They are either the low-intensity versions of the character or they show 
with a gray background.

I can get the high-intensity versions without a problem on the screen 
edits, but not with SHOW.

What am I doing wrong?

Boaz