Hello and welcome to the forum .

What a pretty tree frog!

I am not sure which species it is either. Did the seller say anything about where she came from?

You've gotten some great advice so far.

Crickets will be easiest and aren't too bad to get used to.

Be sure to get some amphibian Calcium with vitamin D3 supplement and some amphibian multivitamin. Some great brands are Repashy calcium plus (vitamin) and Repcal calcium with vitamin D3 (fine powder). You should lightly dust her food with calcium every other day and the MVI one day a week, on a different day from the calcium.

Be sure to dechlorinate any tap water used if there is chlorine, chloramines or any heavy metals in your water. You can use bottles spring water if it is chlorine, chloramine, and heavy-metal free. Drinking water has chlorine in it.

You can mist her tank with distilled water. It does not leave hard water spots when it dries. Avoid using it for her to soak in though. It can pull electrolytes out through her skin bc it has no minerals in it. Works great for spraying though.

If you give her more climbing plants and branches, she'll be very happy and will spend most of her time among the leaves . Be sure to properly treat any new plants and decor for the tank.

Take a look around the tree frog and vivarium sections here. You'll find some nice examples . We can help you. You might want to consider building a false-bottom vivarium.