Alpha composite doesn't work for TP and GP in demos.Clipping.Text of J2Ddemo test for metal pipeline.
Also doesn't work for Following tests

demos.Images.ImageOpsJpg and png


To reproduce the issue , need to select "Alpha composite" from the "Global Controls" of the J2Ddemo test.
Screenshots are attach.
In Screenshot left hand side is opengl pipeline and the right hand side is metal pipeline.


Tested on MacMini 10.14.6 with not retina display uiScale=2 option on latest lanai build.