- the work is pointless, so putting energy into varying colours is pointless, so don't do it,
or
- the work is pointless, so you are free to make decisions that make you happy such as varying the colours.
Although maybe what I'm communicating has changed; I vaguely remember that maybe at one point my work was about complete lack of meaning/purpose, including fulfillment. Now maybe it's more about lack of intrinsic meaning/purpose as something that emphasises the importance of fulfillment.