Originally Posted by
serfty
That is not true.
Those airline seat maps basically use the one icon to indicate availability.
E/F now has at least 6 all indicating the same = free.
It needs extra effort when
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. i.e. All indicate available.
[edit]
It seems simple there, but imagine a web page with 200 or more of these icons ...
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Well, the previous EF seat map version had 4 versions of vacant, IIRC: Clear white, blue with a P for premium, blue with a wheelchair for handicap and blue with an X for blocked. Four of your examples are the same functions but now that SG ratings are available, the colored tags are added consistent with the SG rating system. In one look, you see the nature of the vacancy and the first order SG rating.
Too much information in one icon? Maybe, maybe not. I find the efficiency a good thing but YMMV.