What is the green cloud inside the bottle called?

[divwido]

Rather than just the tube being colored, this has a kind of color cloud around the tube.  Does this have a specific name?

[divwido]

I'll just call it color, then.

[md1919 · Accepted solution]

it is called the sommerso technique

[mtgraves7984]

I was going to guess 'Genie'. LOL

[divwido]

Thank you and just in time. 

blessings

[patd3283]

You have several sommerso pieces listed.  You might want to put that name in the titles.