Hello, Trebor!
(Some avatar there! 
…and of course, your stats!)
Lessee here…
First, thanks much for your helpful reply! (Are “notifications” only on the forum itself??? I haven’t been here for a long time, thought I remembered notifications by email, had been waiting for such in this case… seems that being only on the forum here isn’t very helpful??? 
)
Theme: I guess the sudden unannounced change to what is now called “Light” (seems to me that ought to be called “Bright”!) was to advertise the new option??? as opposed to, say, retaining our existing theme (perhaps not yet called a “theme”?) and leave the new option unannounced.
Anyway… Daddy Ken (77) and Son Carlton (17) (!) have jointly decided - agreed, in fact - that we prefer the old Classic, that white highlighting of the selection be in fact that: highlighting!
Envelope tool: interesting, and we may find a proper (intended, as opposed to fixing) use for it in the future. We did in fact figure out how to get extremely close* to the desired result that way.
To me, an objection remains, being the question of how the “flubbing” led to that state of affairs in the beginning. In particular, I know where my hand was when I made the mess - it was the right hand, working in standard keyboard position, outboard (?) fingers involved - nowhere near either the mouse or F2. ??? Oh well! it shall remain a loose end.
In the end, however, we discovered another way to fix the problem: We had on hand the related mp3 file, exported from the project when we had made our usual left-end and right-end timing adjustments for what we call our Classical Listenings. Turned out we could simply copy those 2 tracks of audio en bloc and paste them into the messed-up project - not sure the paste would work, but it did - and voilà! fixed.
*Using the envelope tool, when we were done, the fixed audio tracks were oh-so-close to being identical to the original… identical horizontally, of course, but the vertical of many bars/lines/strokes a pixel or 2 different (taller as I recall)… so, we chose the fix we chose!
Once again, thanks! …and to whom do we express our appreciation for the existence of Audacity??? …cuz even for our relatively simple needs (but all the time), it is just fantastic, amazing!
Best,
- Ken (kenc@microsoft.com, software engineer, 1988-97, no longer a techie!) & Carlton
