Mischief
The more common use of mischief is an “action or conduct that annoys or vexes; esp., such as may cause trivial evil, annoyance, or trouble to others” - Webster’s International Dictionary.
Read on WikipediaPale mint, the color of a prankster's whisper.
Mischievous is a pale green, close to mint.
It can be described as pale, delicate, faded and luminous.
Set in black, because black reads best on it.
The more common use of mischief is an “action or conduct that annoys or vexes; esp., such as may cause trivial evil, annoyance, or trouble to others” - Webster’s International Dictionary.
Read on WikipediaAdjective