The bug
With my custom model for redstone wire, vertically moving wire with a power level of 15 and without any other full blocks adjacent to it other than the one it's climbing appears green at the very top. I believe this change may be due to the newly added emissive textures in 24w33a, which I've adapted it to use.
How to reproduce
Download and apply the attached resource pack
Place redstone moving up the side of a block
Power it with level 15
Expected results
Redstone would be red.
Actual results
There is a gradient to green.
Can confirm:
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