What particular flashing icons mean

[lyallp]

I see this flashing icon and I don't know what it means.

Factorio_Icon.png (14.48 KiB) Viewed 4571 times

What does it mean?
Where can I go to find out what all the various flashing icons mean?
I tried googling but obviously I am not using the correct search terms.

[DaveMcW]

You need one of these:

[The Eriksonn]

It means that the chest is not having a roboport nearby

[mrvn]

If you look at the icon and squint a bit then it looks like a roboport with the wireless network symbol on top.

[lyallp]

Thanks for the prompt replies, however, is there somewhere that documents this, and other icons as well?
A user manual, perhaps?

PS. I did try squinting before posting the original question, but, obviously, my imagination is not up to it!

[posila]

Challenge in making these icons is that they should be understandable without a manual. It seems this one is not good enough.

[BenSeidel]

Does anyone look at it and think wormsign?

[mrvn]

Looks more like a strange robot head than a roboport.

Is there any reason why the icon has to be monochrom? Why not put the actual roboport icon in there?

[lyallp]

Challenge in making these icons is that they should be understandable without a manual. It seems this one is not good enough.

In the wiki, a sample of an icon and a one sentence explanation as to why it is shown would do.
Alternatively, hover cursor over it and a tooltip tells me what it is trying to say! Then, no manual needed!

[Bilka]

In the wiki, a sample of an icon and a one sentence explanation as to why it is shown would do.

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