Page Comparison

When there are many child windows, it's hard to tell which window is active.

A magenta frame is added around active window title bar 

System Variables

@AWI = bits as follows
0 = No Indicator
1 = Dashed line rectangle
2 = Solid line rectangle
4 = thicker line

@AWF=0 (default), no flashing
@AWF=100, in milliseconds, the flashing time

@AWC for indicator color