Purple Buds!

Hello,
I am in the last 10 days before harvest, noticed that some of the buds are turning dark/purple (images attached).
- Strain: Royal Dwarf Auto
- Temp: 20 C to 30 C
- Humidity: 35% to 40%
- Fan installed

Not sure, if this is normal, a rotten root or rotten buds... please advise.
You may zoom in to check the Trichomes.

Thanks in advance.

Normal and due to colder temps before harvest

Weird. I thought I posted on this question. Its normal.

I did answer. Hey no need to make multiple post with the same question in different sections.

That looks like a dying calyx to me.

caherbgrower said:

That looks like a dying calyx to me.

Click to expand...

Do you think i should harvest if so?

I would.