Cool, so it is
I might have spotted that myself if my eyedropper tool hadn't given me #8CB6E1 instead of
#8DB7E2 (1 digit lower for each value) from the PL/SQL Dev preferences page, even though it is accurate on colour picker websites. Maybe the preferences page displays everything one point darker? (Not that it makes a particularly visible difference.)
As an enhancement request for Marco's famous list, it would be nice to have a better color picker/theme organiser, ideally including the console itself and not just code windows, like the one in
IntelliJ for example.
