Here's a thought: Have a thermochromatic dye (I made this up and don't know if it exists) in the water of a water-cooling system that changes its color as the heat in the water increases or decreases.
There are photochromatic dyes that react to sunlight, but the have one major flaw: they cannot withstand UV light because they change their chemical structure when excited by the energy of UV radiation (and I have never heard of that type of dye in a water solution except for ink).
It would be amazing if they could get the dye to glow as well AND change color instead of break down
However I could be mistaken and they might have all of this in some mod posted on the 'net already.
There are photochromatic dyes that react to sunlight, but the have one major flaw: they cannot withstand UV light because they change their chemical structure when excited by the energy of UV radiation (and I have never heard of that type of dye in a water solution except for ink).
It would be amazing if they could get the dye to glow as well AND change color instead of break down
However I could be mistaken and they might have all of this in some mod posted on the 'net already.
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