What does the shading around some 48 series keys indicate?

[Orome]

(04-18-2020 06:52 PM)Joe Horn Wrote:  (1) Right-shift CHARS is called "The CHARS feature" on page 2-7 and 2-8.
(2) Right-shift MODES, MEMORY, and STACK are called "Utility Environments" on pages 2-14 and 2-15. Left-shift EDIT is also included in that set.
(3) Right-shift 1 through 9 (including UNITS!) are called "Application Environments" on pages 2-12 through 2-14.

Yeah, that's an odd taxonomy, and doesn't quite match the list of "Applications" in the section on Applications and Command Menus, where UNITS is omitted. But as you point out, at least it corresponds to the keyboard.

(04-18-2020 06:52 PM)Joe Horn Wrote:  So it would SEEM that the designers put the light green shading around the right-shift key and the 1 through 9 keys to highlight the officially-named "Application Environments".

I think you've got it!