Chameleon recently just started turning dark dark brown in his enclosure?

[Cham1st101]

Hey guys I have a 3
Male Month old veiled chameleon and for the past 2-3 dats every time he goes in his tank he’s either got brown spots or is completely brown like almost black it’s definitely signs of stress and I was hoping you guys could help me

this is my enclosure if anyone sees anything wrong with it let me know
My temps are 84-78 thorough out the day and 75-69 through the night I mist his cage twice a day and I have a small humidifier for the night I fill it every night I recently cleaned his cage he’s been mine for about a month I use calcium without d3 I upgraded him to big crickets and recently got small hornworms for him to eat he doesn’t seem interesting tho they’re only about a inch and a half ones big tho I didn’t mind putting it near him to eat I lightly mist him once a week to he can get anything off him I have the ubv light and everything let me know what’s going on

 

[Cham1st101]

Anytime I handle him he goes to a bright green too so it has to be the enclosure

 

[bloftis1]

Could be stress, could also be hes basking. Trying to absorb heat. In my opinion i think ur basking branch is too close to the heat bulb, lower it. What watt heat bulb are you using?

 

[Cham1st101]

Alright I will and I use a 60 watt basking bulb