Lab Stack in Imagej reference white point?

Hi,
What illuminant/white reference point does ImageJ use to convert a RGB Stack to a Lab Stack? Is it D65?

I’m not sure if Type > Lab Stack uses the same script as in the Color transformer plugin. If so, it uses D65 white point to transform the data.
https://imagej.nih.gov/ij/plugins/download/Color_Transformer.java

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