About time, part II (English essay 60)

Dear to whom may it concern,
When I was reading this perfect essay (: About time, part II (English essay 60))
I saw this sentence.
[color=indigo]Now the past simple is nowhere near as colourful
What does it mean? Would you please explain it to me?
With the colourful regards

In this instance “colourful” means richer, more vivid, more likely to conjure up images and ideas in the reader’s mind.