Rhombodera basalis has brown feet

[Psytallus]

Hi guys,

I recently got a female Rhombodera basalis in L6. So far she's been doing well, eating heaps and active. But today I noticed that her feet are a brown color. 

Now in most pictures I've seen of R. basalis the feet are green like the rest of the leg. Is this cause for concern? Should I try to bring the humidity down?

I've been spraying the enclosure every evening, since the plants in it also like it humid. The hygrometer shows 70-75% during the day and 85-90 at night and I thought 

this was within acceptable range. I would really appreciate some help in the matter.

Cheers Tim

 

[Psytallus]

Looking back at pictures her legs were already brown when she arrived. Also, the hind legs are much darker than the one in the photo, almost black.