c946abf8__X_Win32___free_demo___StarNet__Section_508_Requirement
[StarNet's X-Win32] X-Win32 provides visual focus indicators through the standard functions built into the operating system. (Except for the host-controlled cursor in any host-controlled client area). [Section 508 Requirement] 
(c) A well-defined on-screen indication of the current focus shall be provided that moves among interactive interface elements as the input focus changes. The focus shall be programmatically exposed so that assistive technology can track focus and focus changes.
PC X server - X11 Emulator for Linux / Unix Remote Desktop - X-Win32 - free demo - StarNet
Section 508 Requirement