Came across this image of a colorful Arduino board on LinkedIn, don’t know if it is for sale.
It shows both functional and playful use of color.
(image courtesy of Gevo Electronics)
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https://www.lcsc.com/category/11135.html?brand=16042
https://www.lcsc.com/datasheet/C22458776.pdf
It is available in three different colours:
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Wonder how they did that.
very carefully 
LCSC is part of JLCPCB.
Tom.... 
Yes I know but that does not explain how they did it.
More than one silk screen?
Tom....
There are variations of that theme. I've seen some with anime characters.
The extra power and I2C comms headers is a nice touch, although, since there is only one UART, I am not sure why you would need an extra pair of Tx/Rx pins.
Notice they are next to extra +5 and ground pins. I find it handy for wiring.
JLCPCB use a 6 color UV printer.
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Didn't think of that, but yes, that puts the typical 4 UART pins next to each other.
I have had an application that split them, a data in line and a serial display.
But there are many things one can do with a split uart. Imagine to make the Sieve of Eratosthenes (prime filter) over Serial, the first arduino filters until RAM is full of primes to test, then it sends the new found to the second Arduino, which filters larger primes etc