Index: trunk/test/unit/org/openstreetmap/josm/data/PreferencesTest.groovy
===================================================================
--- trunk/test/unit/org/openstreetmap/josm/data/PreferencesTest.groovy	(revision 6740)
+++ trunk/test/unit/org/openstreetmap/josm/data/PreferencesTest.groovy	(revision 6774)
@@ -2,4 +2,6 @@
 
 import org.openstreetmap.josm.Main
+
+import java.awt.Color
 
 class PreferencesTest extends GroovyTestCase {
@@ -10,5 +12,17 @@
 
     void testColorName() {
-        Main.pref.getColorName("color.layer {5DE308C0-916F-4B5A-B3DB-D45E17F30172}.gpx") == "{5DE308C0-916F-4B5A-B3DB-D45E17F30172}.gpx"
+        assert Main.pref.getColorName("color.layer {5DE308C0-916F-4B5A-B3DB-D45E17F30172}.gpx") == "color.layer {5DE308C0-916F-4B5A-B3DB-D45E17F30172}.gpx"
+    }
+
+    void testColorAlpha() {
+        assert Main.pref.getColor("foo", new Color(0x12345678, true)).alpha == 0x12
+        assert Main.pref.putColor("bar", new Color(0x12345678, true))
+        assert Main.pref.getColor("bar", null).alpha == 0x12
+    }
+
+    void testColorNameAlpha() {
+        assert Main.pref.getColor("foo", "bar", new Color(0x12345678, true)).alpha == 0x12
+        assert Main.pref.getDefaultColor("foo") == new Color(0x34, 0x56, 0x78, 0x12)
+        assert Main.pref.getDefaultColor("foo").alpha == 0x12
     }
 }
Index: trunk/test/unit/org/openstreetmap/josm/gui/mappaint/mapcss/MapCSSParserTest.groovy
===================================================================
--- trunk/test/unit/org/openstreetmap/josm/gui/mappaint/mapcss/MapCSSParserTest.groovy	(revision 6740)
+++ trunk/test/unit/org/openstreetmap/josm/gui/mappaint/mapcss/MapCSSParserTest.groovy	(revision 6774)
@@ -225,5 +225,19 @@
         def expected = new Color(0x88DD22)
         assert e.getCascade(Environment.DEFAULT_LAYER).get("color") == expected
-        assert Main.pref.getDefaultColor("MapCSS.testcolour1") == expected
+        assert Main.pref.getDefaultColor("mappaint.mapcss.testcolour1") == expected
+    }
+
+    @Test
+    public void testColorNameTicket9191Alpha() throws Exception {
+        def e = new Environment(null, new MultiCascade(), Environment.DEFAULT_LAYER, null)
+        getParser("{color: testcolour2#12345678}").declaration().get(0).execute(e)
+        def expected = new Color(0x12, 0x34, 0x56, 0x78)
+        assert e.getCascade(Environment.DEFAULT_LAYER).get("color") == expected
+        assert Main.pref.getDefaultColor("mappaint.mapcss.testcolour2") == expected
+    }
+
+    @Test
+    public void testColorParsing() throws Exception {
+        assert ColorHelper.html2color("#12345678") == new Color(0x12, 0x34, 0x56, 0x78)
     }
 }