Bug 1663075 - Make restore default icon color buttons keyboard accessible. r=Paenglab DONTBUILD

mail/themes/shared/mail/themeableDialog.css

@@ -184,6 +184,7 @@ html|input[type="color"] {
 
 button:-moz-focusring,
 menulist:-moz-focusring,
+#resetColor:-moz-focusring,
 html|input[type="color"]:focus {
   border-color: var(--highlight-color);
   outline: none;

mailnews/base/content/folderProps.xhtml

@@ -59,7 +59,7 @@
           <button id="resetColor"
                   tooltiptext="&folderProps.reset.tooltip;"
                   class="toolbarbutton-1 btn-flat btn-reset"
-                  onclick="resetColor();"/>
+                  oncommand="resetColor();"/>
         </hbox>
         <label id="locationLabel" value="&folderProps.location.label;"
                control="location" accesskey="&folderProps.location.accesskey;"/>

mailnews/base/content/virtualFolderProperties.xhtml

@@ -83,7 +83,7 @@
           <button id="resetColor"
                   tooltiptext="&folderProps.reset.tooltip;"
                   class="toolbarbutton-1 btn-flat btn-reset"
-                  onclick="resetColor();"/>
+                  oncommand="resetColor();"/>
         </hbox>
       </hbox>
       <menulist id="msgNewFolderPicker" class="folderMenuItem" align="center"