Bug 898955 - zotero Library navigation pane draws unusual borders. r=dao

toolkit/themes/windows/global/tree-aero.css

@@ -70,7 +70,6 @@ treechildren:-moz-locale-dir(rtl)::-moz-tree-twisty(hover, open) {
     -moz-margin-start: 1px;
     -moz-margin-end: 1px;
     border-width: 2px;
-    border-style: solid !important;
     border-color: transparent;
     border-radius: 3px;
     background-repeat: no-repeat;
@@ -89,6 +88,7 @@ treechildren:-moz-locale-dir(rtl)::-moz-tree-twisty(hover, open) {
   }
 
   treechildren::-moz-tree-row(current, focus) {
+    border-style: solid;
     -moz-border-top-colors: @hoverAndFocusBorderColor@ @whiteOpacityBorderColor@;
     -moz-border-right-colors: @hoverAndFocusBorderColor@ @whiteOpacityBorderColor@;
     -moz-border-left-colors: @hoverAndFocusBorderColor@ @whiteOpacityBorderColor@;
@@ -107,6 +107,7 @@ treechildren:-moz-locale-dir(rtl)::-moz-tree-twisty(hover, open) {
   }
 
   treechildren::-moz-tree-row(selected, current, focus) {
+    border-style: solid;
     -moz-border-top-colors: @hoverAndFocusBorderColor@ @whiteOpacityBorderColor@;
     -moz-border-right-colors: @hoverAndFocusBorderColor@ @whiteOpacityBorderColor@;
     -moz-border-left-colors: @hoverAndFocusBorderColor@ @whiteOpacityBorderColor@;

toolkit/themes/windows/global/tree.css

@@ -61,6 +61,7 @@ tree[seltype="cell"] > treechildren::-moz-tree-row,
 tree[seltype="text"] > treechildren::-moz-tree-row {
   border: none;
   background-color: transparent;
+  background-image: none;
 }
 
 /* ::::: tree cells ::::: */