N14 - How can I turn off selected event colour change?

Very true.

But that burden shouldn’t fall on the customers - i would’ve rather they delayed Nuendo 14 and took even more time testing to sort something like this out properly, as they knew where they landed would be a “compromise” (a.k.a. a detriment and workflow underminer for some customers. Personally, I would never consider “after all these years in Nuendo, now you get MANDATORY inverted colors” a “solution”)

I def understand that scenario - unfortunately, this doesn’t feel like a “sensible” change, but rather to your earlier point, their UI system is a house of cards, so here we are with an unapologetic, unrequested change like that forced upon us; a change that’s frustrating a number of users (and making some of us stick with Nuendo 13 while perhaps regretting the purchase of 14. Which is sad, because there appear to be some interesting new [and sensible] features in it).

For me, the biggest issue is the (IMO all-too-frequent) dismissive attitude from SB when it comes to baffled, exasperated customers simply expressing their frustration, hoping for helpful insight, accountability and actual support; customers that have paid for this company’s product (including every subsequent update), and depend on that product for their livelihood, only to have significant unexpected (less efficient) changes thrust upon them without warning.
And the SB feedback - “you’ll have to get used to it”

Reminds me of back in the day working with Quark (page layout software) and their “just deal with it” attitude when it came to bugs and frustrations.