Does anyone know the name of this algae pattern?

I already read that as condescending... that you decide whom you graciously allow to respond to you.
Therefore, I:
...unfortunately cannot agree with you.

I haven’t decided anything at all, I asked – it was in no way meant to be condescending. The fact is that it doesn’t help when inappropriate answers come (for example, you ask about paint color and get diesel engine as an answer). I see we have different views of my way of expression here. I promise to improve.

All your questions have already been answered in detail

Well then, I'll browse inattentive readers:

This is not about the flooring itself, not about the material, not about the size, it’s only about the pattern.

That’s definitely not the case.

Specifically, it’s about the light-dark color combination with some, I’d say, pink in it and the fine but clearly visible grain of the wood.

A hint already

Definitely, dear @11ant, I will now make several picture frames out of it.

Thanks for the help , you revealed it on page 4.

Looking forward to the frames, the idea sounds good.

From that I have to say:
...unfortunately I cannot agree with you.

Now wait a moment, it just became clear to me. When a user (no matter who) writes sentences like:

"In normal life, your counterpart would briefly forget their pacifism for such behavior and send you to the dentist. That I keep my sense of humor in such situations instead of beating people up is something you should be grateful for, instead of defaming it as ridicule!"

and I write sentences like:

"If yes, I would appreciate an answer, if no, then please simply do not respond, that is no help to anyone."

then I am the "aggressive poster"? Is that really your view?

The dentist quote is not acceptable at all.

The "if not, then..." comes across as a provocation.

The dentist quote is just not acceptable.

Because the thirteen and a half lines and four quotes that were before - see post #36 - did not come along?

Let it be. In the end, everyone just wants to exchange ideas here. Sometimes there's a commotion and then it's fine, isn't it? There's this mega-gangster song that I find so sh..ty that it's actually cool again. It goes: "I press the gas, drive the 500 HP, sometimes there’s trouble but it sorts itself out."