cssfiltervalue: Fix blur filter interpretation
authorMatthias Clasen <mclasen@redhat.com>
Sat, 6 Feb 2021 03:06:56 +0000 (22:06 -0500)
committerMatthias Clasen <mclasen@redhat.com>
Sat, 6 Feb 2021 21:16:44 +0000 (16:16 -0500)
commitcc6fcbfc093d17b6df8a9f23131d776c7a7bb89a
treedda51022b4402bf006c3c0e8ebb639ecb25505eb
parentea7185bdb1ba423495340a9b880e619a861064fd
cssfiltervalue: Fix blur filter interpretation

According to https://www.w3.org/TR/filter-effects-1/,
the length passed to blur() is the standard deviation,
and according to https://www.w3.org/TR/css-backgrounds-3/#shadow-blur
the blur radius is twice the standard deviation.
gtk/gtkcssfiltervalue.c