reftests: Use 0.6 alpha, not 0.5
authorBenjamin Otte <otte@redhat.com>
Wed, 15 Sep 2021 20:32:12 +0000 (22:32 +0200)
committerBenjamin Otte <otte@redhat.com>
Thu, 16 Sep 2021 21:59:37 +0000 (23:59 +0200)
commit90ed7b92b2ed5f55990f73b04efee92bffb6f8e1
treea5385e1d0877fac56d151345b1dc12bea00921c5
parent625b5ce91a5bce14885d25ac3d187bbbd8c99be1
reftests: Use 0.6 alpha, not 0.5

0.5 leads to some GL renderers computing 0.5 * 0xFF as 0x7F and
others 0x80, while 0.6 * 0xFF (255 is divisible by 5) is always 0x99.
testsuite/reftests/background-origin.css
testsuite/reftests/reference-background-origin.png