I would like to ask, whether it is correct to use the word "variegation" in the meaning of "something which makes e.g. an event more interesting or which livens up the event", for example in the following sentence:
Exhibition runs of professional drivers were a variegation of the whole event.
Or is there any better expression?
Thank you very much.
"Variegation" is mostly used in connection with plants. A variegated leaf might have white blotches or stripes, for instance, as in these images of Aloe variegata:
You might say "Exhibition runs by professional drivers were a highlight of the event". Does that fit your context?