Follow changes in WD-css-fonts-4-20170711

See also: http://www.w3.org/TR/2017/WD-css-fonts-4-20170711/

Author: hail2u

after/syntax/css/css-fonts-4.vim

@@ -1,4 +1,10 @@
+syn match cssFontProp contained "\<font-\(min\|max\)-size\>"
+syn match cssFontProp contained "\<font-display\>"
 syn match cssFontProp contained "\<font-optical-sizing\>"
 syn match cssFontProp contained "\<font-variation-settings\>"
-syn keyword cssFontAttr contained emoji math fangsong
+syn match cssFontProp contained "\<font-palette\>"
+syn match cssFontProp contained "\<font-presentation\>"
+syn match cssFontProp contained "\<base-palette\>"
+syn keyword cssFontAttr contained emoji math fangsong infinity swap fallback optional light dark
 syn match cssFontAttr contained "\<system-ui\>"
+syn region cssInclude start=/@font-palette-values\>/ end=/\ze{/ skipwhite skipnl contains=css.*Prop,css.*Attr,cssValueInteger,cssValueLength,cssMediaKeyword,cssVendor,cssIncludeKeyword,cssComment nextgroup=cssMediaBlock

test/test.css

@@ -285,6 +285,9 @@
   display: auto;
 }
 
+.fonts-4 {
+}
+
 .fonts-3 {
   font-feature-settings: common-ligatures;
   font-kerning: no-common-ligatures;
@@ -324,10 +327,20 @@
 }
 
 .fonts-4 {
-  font-optical-sizing: emoji;
-  font-variation-settings: math;
-  display: fangsong;
-  display: system-ui;
+  font-min-size: emoji;
+  font-max-size: math;
+  font-display: fangsong;
+  font-optical-sizing: system-ui;
+  font-variation-settings: infinity;
+  font-palette: swap;
+  font-presentation: fallback;
+  display: optional;
+  display: light;
+  display: dark;
+}
+
+@font-palette-values Test {
+  base-palette: 1;
 }
 
 .gcpm-3::footnote-call,

test/test.html

@@ -358,10 +358,20 @@
 </style>
 <style>
 .fonts-4 {
-  font-optical-sizing: emoji;
-  font-variation-settings: math;
-  display: fangsong;
-  display: system-ui;
+  font-min-size: emoji;
+  font-max-size: math;
+  font-display: fangsong;
+  font-optical-sizing: system-ui;
+  font-variation-settings: infinity;
+  font-palette: swap;
+  font-presentation: fallback;
+  display: optional;
+  display: light;
+  display: dark;
+}
+
+@font-palette-values Test {
+  base-palette: 1;
 }
 </style>
 <style>