22 matrix.setAll(-1, 0, 220, 0, 1, 0, 0, 0, 1);
@ kNormal_SkBlurStyle
fuzzy inside and outside
constexpr SkColor SK_ColorBLACK
static sk_sp< SkColorFilter > Blend(const SkColor4f &c, sk_sp< SkColorSpace >, SkBlendMode mode)
static sk_sp< SkMaskFilter > MakeBlur(SkBlurStyle style, SkScalar sigma, bool respectCTM=true)
DEF_SIMPLE_GM(crbug_899512, canvas, 520, 520)
unsigned useCenter Optional< SkMatrix > matrix
static constexpr SkRect MakeXYWH(float x, float y, float w, float h)