Add style for trait aliases

Author: GuillaumeGomez

src/librustdoc/html/static/themes/dark.css

@@ -94,6 +94,7 @@ pre {
 }
 .content .highlighted a, .content .highlighted span { color: #eee !important; }
 .content .highlighted.trait { background-color: #013191; }
+.content .highlighted.traitalias { background-color: #013191; }
 .content .highlighted.mod,
 .content .highlighted.externcrate { background-color: #afc6e4; }
 .content .highlighted.mod { background-color: #803a1b; }
@@ -128,6 +129,7 @@ pre {
 .content span.externcrate,
 .content span.mod, .content a.mod, .block a.current.mod { color: #bda000; }
 .content span.trait, .content a.trait, .block a.current.trait { color: #b78cf2; }
+.content span.traitalias, .content a.traitalias, .block a.current.traitalias { color: #b397da; }
 .content span.fn, .content a.fn, .block a.current.fn,
 .content span.method, .content a.method, .block a.current.method,
 .content span.tymethod, .content a.tymethod, .block a.current.tymethod,

src/librustdoc/html/static/themes/light.css

@@ -96,6 +96,7 @@ pre {
 }
 .content .highlighted a, .content .highlighted span { color: #000 !important; }
 .content .highlighted.trait { background-color: #c7b6ff; }
+.content .highlighted.traitalias { background-color: #c7b6ff; }
 .content .highlighted.mod,
 .content .highlighted.externcrate { background-color: #afc6e4; }
 .content .highlighted.enum { background-color: #b4d1b9; }
@@ -128,6 +129,7 @@ pre {
 .content span.externcrate,
 .content span.mod, .content a.mod, .block a.current.mod { color: #4d76ae; }
 .content span.trait, .content a.trait, .block a.current.trait { color: #7c5af3; }
+.content span.traitalias, .content a.traitalias, .block a.current.traitalias { color: #6841f1; }
 .content span.fn, .content a.fn, .block a.current.fn,
 .content span.method, .content a.method, .block a.current.method,
 .content span.tymethod, .content a.tymethod, .block a.current.tymethod,