Add missing pixelated value to images-3.vim

after/syntax/css/images-3.vim

@@ -1,6 +1,6 @@
 syn match cssFontProp contained "\<object-\(fit\|position\)\>"
 syn match cssFontProp contained "\<image-orientation\>"
-syn keyword cssFontAttr contained snap flip
+syn keyword cssFontAttr contained snap flip pixelated
 syn match cssFontAttr contained "\<scale-down\>"
 syn match cssFontAttr contained "\<from-image\>"
 syn region cssFunction contained matchgroup=cssFunctionName start="\<\(repeating-\(linear\|radial\)-gradient\)\s*(" end=")" oneline keepend

test/test.css

@@ -444,6 +444,7 @@ template {
 	display: flip;
 	display: scale-down;
 	display: from-image;
+	display: pixelated;
 	display: repeating-linear-gradient(to bottom, yellow, blue);
 	display: repeating-radial-gradient(farthest-corner at 50% 50%, yellow, green);
 }