We have performed a test as comparison of clarity between acrylic and glass. The colour of yellow sample was dull and darker after the glass masked. It reminds as good as originally yellow for the case of acrylic. Indeed acrylic offer superior clarity than the glass including the crystal grade.
We use thicker acrylic 25mm that is double the thickness of glass, it still perform better. Detail as above.
Another test was done during scratches test. It shows the same effect that glass attenuate the yellow picture that it appeared greenish.