Hen's comb is a little purple on the tip in the back

[SCOUT123]

Before my hens went in to roost, one of them jumped onto the fence separating my backyard from my neighbor's. I grabbed her to prevent her from going to the neighbor's yard, and she seemed kind of mad. Upon further inspection, I discovered that the the tip in the back of her comb was a little purplish. Then I let her go and after running around with her sister, she went and drank a lot of water (it was a hot day today, around 90 degrees F) I didn't see this "discoloration" earlier in the day, and I only noticed it after I plucked her off the fence. The purplish part feels cold.
Some other things that may be helpful:
- She's a 27-week-old (around 6 months) RIR
- She's been laying since June 3rd/4th (around 24-25 weeks)
- Her comb started growing in a "bent" manner a few weeks before going into lay
- Their coop is covered with blackout curtains
- Acts perfectly normal
- Shows no signs of illness
- Majority of the comb is still bright red, except for the little tip in the back
- Wattles are bright red
- I think the discoloration decreased a bit after she drank the water? idrk, because it was getting dark.
- She shook her head multiple times after I noticed.

Is she just mad, or is it because of the hot weather? Or something else? She's a very important pet to me, and I can't bear to lose her. Any ideas?

 

[Poultry parent]

it could be because of lack of water or too much heat. make sure to provide plenty of water, fruit, and shade.
post a picture please

 

[AustralorpsAU]

This morning i just noticed my Anconas comb was purple on the tips too but as it warmed up it seemed to get its colour back. It is pretty cold down here but doesn't reach freezing so i hope it will be ok,

 

[SCOUT123]

it could be because of lack of water or too much heat. make sure to provide plenty of water, fruit, and shade.
post a picture please

it's not purple at the tips anymore

but i can get you a picture of how it looks now (not the most normal-looking comb ever; it's a little bent)
But this morning she pooped a "mushy green" poop, which indicates she was drinking a lot of water
So I think it's safe to assume that it's from too much heat?

 

[Poultry parent]

probably, just keep an eye on it

 

[SCOUT123]

Wait- I just found out that they ate a huge chunk of sponge out of a synthetic tree. Could this be why the comb was a bit purple (it's not now though), and will this cause them any harm?

 

[Poultry parent]

i doubt that would cause a comb to turn purple, but it could potentially cause problems

 

[Clodill4rel]

Is something wrong with my silky mixed with lavender olive egger ROO his comb is bent over everyone talks about it being red but his isn’t red at all…. The silky mama is a white polish dad was a lavender olive egger he has a bright big red comb.