This is an experiment proposal, ready for observations when comparable specimens and measurements are available.
The question
How does controlled variation in bright shade affect the appearance of translucent leaf windows over time?
A careful setup
Use comparable plants, keep watering and substrate consistent, record light levels at the leaf surface, and photograph each plant from the same position. Changes should be documented before any conclusion is made.
What would count as useful
A result needs dated images, stable conditions and enough time to separate a short stress response from sustained growth. Until then, the page remains a proposal rather than a claim.