You could have the monitor plugged in a relay controlled by software and/or override switch, then have your front end or application at startup toggle the relay ON (turning the monitor ON) when you were past all the blue screens... this of course would make you see nothing while starting the computer, not to say, it's a lot of work for a small problem.
On my EBY701, the colour is random all red, all green, or all blue. It is sort of a guessing game which one will show up the first half second you turn it on.
There's no way to get rid of it, that is just how the monitor's hardware is.
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1.9in x 2.9in -- 47mm x 73mm
30 Digital Outputs -- Directly drive a relay
15 Analogue Inputs -- Read sensors like temperature, light, distance, acceleration, and more
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