issue What’s Wrong With These Leaves?

[SeefoodDinner]

Noticed this odd white coloration (and what seems to be brown spots within as well?) on a few leaves of this chiltepin pepper plant that I have. Haven’t seen this before, and my peppers have been outside for two weeks now, so I don’t think it’s sunscald. The plant looked fine days earlier, and it’s only this plant that’s affected. I do worry if it’s something that could spread to the others.

 

[DementedWelder]

I'd check around for aphids.

 

[CaneDog]

For what it's worth, that doesn't look like any communicable pathogen to me. It looks environmental and at this point I don't think I'd take any action except to wait and see, with the expectation that there's not a problem.

 

[hmartin]

The brownish spots make me think fungus? In which case probably trim these leaves to prevent spread.
What the humidity / watering routine? Are you checking soil pH?