Fixes #542, Better icons for preferences window

Also better spacing of prefpane buttons

chrome/content/zotero/about.xul

@@ -61,7 +61,8 @@
 			<label class="text-link" href="http://www.mellon.org/" value="Andrew W. Mellon Foundation"/>
 			<label class="text-link" href="http://www.imls.gov/" value="Institute of Museum and Library Services"/>
 			<label class="text-link" href="http://www.sloan.org/" value="Alfred P. Sloan Foundation"/>
-			<label class="text-link" href="http://www.famfamfam.com/lab/icons/silk/" value="famfamfam (icons)"/>
+			<label class="text-link" href="http://www.famfamfam.com/lab/icons/silk/" value="famfamfam (small icons)"/>
+			<label class="text-link" href="http://tango.freedesktop.org/Tango_Desktop_Project" value="Tango Desktop Project (pref icons)"/>
 		</vbox>
 	</vbox>
 </dialog>

chrome/skin/default/zotero/preferences.css

@@ -5,7 +5,7 @@ prefwindow .chromeclass-toolbar
 
 radio[pane]
 {
-	width: 48px;
+	width: 60px;
 	height: 48px;
 	-moz-box-align: center;
 	-moz-box-pack: end;
@@ -14,13 +14,7 @@ radio[pane]
 /* General pane icon */
 radio[pane=zotero-prefpane-general]
 {
-	-moz-image-region: rect(0px, 32px, 32px, 0px);
-}
-radio[pane=zotero-prefpane-general]:hover, 
-radio[pane=zotero-prefpane-general]:active,
-radio[pane=zotero-prefpane-general][selected="true"]
-{
-	-moz-image-region: rect(32px, 32px, 64px, 0px);
+	list-style-image: url("chrome://zotero/skin/prefs-general.png");
 }
 
 /*
@@ -28,13 +22,7 @@ radio[pane=zotero-prefpane-general][selected="true"]
  */
 radio[pane=zotero-prefpane-export]
 {
-	-moz-image-region: rect(0px, 224px, 32px, 192px);
-}
-radio[pane=zotero-prefpane-export]:hover, 
-radio[pane=zotero-prefpane-export]:active,
-radio[pane=zotero-prefpane-export][selected="true"]
-{
-	-moz-image-region: rect(32px, 224px, 64px, 192px);
+	list-style-image: url("chrome://zotero/skin/prefs-export.png");
 }
 
 /*
@@ -44,13 +32,7 @@ radio[pane=zotero-prefpane-export][selected="true"]
  */
 radio[pane=zotero-prefpane-keys]
 {
-	-moz-image-region: rect(0px, 224px, 32px, 192px);
-}
-radio[pane=zotero-prefpane-keys]:hover, 
-radio[pane=zotero-prefpane-keys]:active,
-radio[pane=zotero-prefpane-keys][selected="true"]
-{
-	-moz-image-region: rect(32px, 224px, 64px, 192px);
+	list-style-image: url("chrome://zotero/skin/prefs-keys.png");
 }
 
 
@@ -61,13 +43,7 @@ radio[pane=zotero-prefpane-keys][selected="true"]
  */
 radio[pane=zotero-prefpane-advanced]
 {
-	-moz-image-region: rect(0px, 224px, 32px, 192px);
-}
-radio[pane=zotero-prefpane-advanced]:hover, 
-radio[pane=zotero-prefpane-advanced]:active,
-radio[pane=zotero-prefpane-advanced][selected="true"]
-{
-	-moz-image-region: rect(32px, 224px, 64px, 192px);
+	list-style-image: url("chrome://zotero/skin/prefs-advanced.png");
 }
 
 

chrome/skin/default/zotero/zotero.css

@@ -53,6 +53,11 @@ toolbar[iconsize="small"] #zotero-toolbar-button:active
 
 
 /* Bindings */
+treecol[id=zotero-items-column-title] .treecol-text
+{
+	/* -moz-binding: url('chrome://zotero/content/bindings/expanding-treecol.xml#expanding-treecol'); */
+}
+
 textbox[type="conditional-timed"]
 {
 	-moz-binding: url('chrome://zotero/content/bindings/conditional-timed-textbox.xml#conditional-timed-textbox');