Maybe I'm not seeing something, but it looks like the implementation of the 
(otherwise interesting) idea is potentially flawed.  They seem to use the same 
shape for both red and blue.  It is just rotated.  That could cause a lot of 

-----Original Message-----
From: Unicode <> On Behalf Of Hans Åberg via Unicode
Sent: Monday, April 29, 2019 12:00 PM
To: Doug Ewell <>
Cc: Unicode Mailing List <>
Subject: Re: Symbols of colors used in Portugal for transport

> On 29 Apr 2019, at 20:02, Doug Ewell via Unicode <> wrote:
> Philippe Verdy wrote:
>> A very useful think to add to Unicode (for colorblind people) !
>> Is it proposed to add as new symbols ?
> Well, it isn't proposed until someone proposes it.
> At first I thought Emojination would be best to write this proposal, 
> to improve its chances of approval. But these aren't really emoji; 
> they're actual text-like symbols, of the type that has always been 
> considered appropriate for Unicode. (They're not "for transport" per 
> se; they are a secondary indication of colors, meant for the 
> color-blind.)
> One important question that a proposal would need to answer is whether 
> these symbols are actually used in the real world. They seem like a 
> good and innovative new idea, and there is always a desire to help 
> people with physical challenges; but neither of those is what Unicode is 
> about.
> For non-emoji characters, there is usually still a requirement to show 
> a certain level of actual usage.

The guy who made the artwork for Heroes is completely color-blind, seeing only 
in a grayscale, so they agreed he coded the colors in black and white, and then 
that was replaced with colors.

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