For the tropics.......I pretty much just use khaki or green cool wear clothing from the safety clothing shops now, they specialise in cool wear clothing for the tropics and you can try them on before you buy.
If bow hunting I have some Natural gear, the pants are great, the shirts are too thick for the tropics.
Also been experimenting with shorts and knee high gaitors, when its raining or the long grass is wet I think this maybe the way to go because the gaitors don't hold water.
Ohh nearly forgot, most importantly, Step One boxers to avoid jock rot and monkey butt 😀 that will ruin any day in the bush haha