Created attachment 466435 [details] Photo of icons being all black in MotionMark test In a MotionMark test (not sure about the name), the icons are black, when normally they are in colour. Tested in WebKitGTK MiniBrowser (WebKit main), with LBSE turned on in Experimental Features.
<rdar://problem/109927298>
I confirmed this is reproducible with Mac and Windows MiniBrowser by enabling LBSE.
The MotionMark sub-test name is "Suits". This link can reproduce the bug: https://www.browserbench.org/MotionMark1.2/developer.html?warmup-length=2000&warmup-frame-count=3000&first-frame-minimum-length=0&test-interval=30&display=minimal&tiles=big&controller=fixed&frame-rate=50&time-measurement=performance&suite-name=MotionMark&test-name=Suits&complexity=2000