I don't think there were many liveries as bright as CourtLine thou?
The L10 looked good in the colours.
I was a fan of Excalibur for a short time back in 1994, I loved the livery, It suited the A320.
Another was Ambassador - a 'lovely' and different scheme but was short lived.
My favourite back then was Air 2000, the original scheme 1987 white fuselage, gold + red cheatlines, I am not a big fan of the current FCA scheme.
Although a long time BY fan, I actually like both the old BY and the new Thomsonfly scheme.