diff --git a/docs/assets/css/bootstrap.css b/docs/assets/css/bootstrap.css
index 5051c7ef98..87b2942a15 100644
--- a/docs/assets/css/bootstrap.css
+++ b/docs/assets/css/bootstrap.css
@@ -2541,56 +2541,16 @@ button.close {
 
 .btn {
   display: inline-block;
-  padding: 6px 12px;
+  padding: 7px 13px;
   margin-bottom: 0;
   font-size: 14px;
+  font-weight: bold;
   line-height: 20px;
-  color: #333333;
   text-align: center;
-  text-shadow: 0 1px 1px rgba(255, 255, 255, 0.75);
-  white-space: nowrap;
   vertical-align: middle;
   cursor: pointer;
-  background-color: #f0f0f0;
-  background-image: -moz-linear-gradient(top, #fafafa, #e1e1e1);
-  background-image: -webkit-gradient(linear, 0 0, 0 100%, from(#fafafa), to(#e1e1e1));
-  background-image: -webkit-linear-gradient(top, #fafafa, #e1e1e1);
-  background-image: -o-linear-gradient(top, #fafafa, #e1e1e1);
-  background-image: linear-gradient(to bottom, #fafafa, #e1e1e1);
-  background-repeat: repeat-x;
-  border: 1px solid #bbbbbb;
-  border-color: #e1e1e1 #e1e1e1 #bababa;
-  border-color: rgba(0, 0, 0, 0.1) rgba(0, 0, 0, 0.1) rgba(0, 0, 0, 0.25);
-  border-bottom-color: #a2a2a2;
+  border: 0;
   border-radius: 4px;
-  filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#fffafafa', endColorstr='#ffe1e1e1', GradientType=0);
-  filter: progid:DXImageTransform.Microsoft.gradient(enabled=false);
-  -webkit-box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.2), 0 1px 2px rgba(0, 0, 0, 0.05);
-          box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.2), 0 1px 2px rgba(0, 0, 0, 0.05);
-}
-
-.btn:hover,
-.btn:active,
-.btn.active,
-.btn.disabled,
-.btn[disabled] {
-  color: #333333;
-  background-color: #e1e1e1;
-}
-
-.btn:active,
-.btn.active {
-  background-color: #c7c7c7 \9;
-}
-
-.btn:hover {
-  color: #333333;
-  text-decoration: none;
-  background-position: 0 -15px;
-  -webkit-transition: background-position 0.1s linear;
-     -moz-transition: background-position 0.1s linear;
-       -o-transition: background-position 0.1s linear;
-          transition: background-position 0.1s linear;
 }
 
 .btn:focus {
@@ -2599,9 +2559,12 @@ button.close {
   outline-offset: -2px;
 }
 
-.btn.active,
-.btn:active {
-  background-image: none;
+.btn:hover {
+  text-decoration: none;
+}
+
+.btn:active,
+.btn.active {
   outline: 0;
   -webkit-box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.15), 0 1px 2px rgba(0, 0, 0, 0.05);
           box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.15), 0 1px 2px rgba(0, 0, 0, 0.05);
@@ -2610,13 +2573,79 @@ button.close {
 .btn.disabled,
 .btn[disabled] {
   cursor: default;
-  background-image: none;
   opacity: 0.65;
   filter: alpha(opacity=65);
   -webkit-box-shadow: none;
           box-shadow: none;
 }
 
+.btn-default {
+  padding: 6px 12px;
+  color: #5a5a5a;
+  background-color: #fff;
+  border: 1px solid #ccc;
+}
+
+.btn-default:hover {
+  color: #fff;
+  background-color: #999;
+  border-color: #999;
+}
+
+/*
+// Core
+.btn {
+  display: inline-block;
+  padding: 6px 12px;
+  margin-bottom: 0; // For input.btn
+  font-size: @font-size-base;
+  line-height: @line-height-base;
+  text-align: center;
+  vertical-align: middle;
+  cursor: pointer;
+  white-space: nowrap;
+  .buttonBackground(@btn-background, @btn-background-highlight, @grayDark, 0 1px 1px rgba(255,255,255,.75));
+  border: 1px solid @btn-border;
+  border-bottom-color: darken(@btn-border, 10%);
+  border-radius: @border-radius-base;
+  .box-shadow(~"inset 0 1px 0 rgba(255,255,255,.2), 0 1px 2px rgba(0,0,0,.05)");
+
+  // Hover state
+  &:hover {
+    color: @grayDark;
+    text-decoration: none;
+    background-position: 0 -15px;
+
+    // transition is only when going to hover, otherwise the background
+    // behind the gradient (there for IE<=9 fallback) gets mismatched
+    .transition(background-position .1s linear);
+  }
+
+  // Focus state for keyboard and accessibility
+  &:focus {
+    .tab-focus();
+  }
+
+  // Active state
+  &.active,
+  &:active {
+    background-image: none;
+    outline: 0;
+    .box-shadow(~"inset 0 2px 4px rgba(0,0,0,.15), 0 1px 2px rgba(0,0,0,.05)");
+  }
+
+  // Disabled state
+  &.disabled,
+  &[disabled] {
+    cursor: default;
+    background-image: none;
+    .opacity(65);
+    .box-shadow(none);
+  }
+
+}
+*/
+
 .btn-large {
   padding: 11px 19px;
   font-size: 17.5px;
@@ -2669,198 +2698,52 @@ input[type="button"].btn-block {
   width: 100%;
 }
 
-.btn-primary.active,
-.btn-warning.active,
-.btn-danger.active,
-.btn-success.active,
-.btn-info.active,
-.btn-inverse.active {
-  color: rgba(255, 255, 255, 0.75);
-}
-
-.btn {
-  border-color: #c5c5c5;
-  border-color: rgba(0, 0, 0, 0.15) rgba(0, 0, 0, 0.15) rgba(0, 0, 0, 0.25);
-}
-
 .btn-primary {
   color: #ffffff;
-  text-shadow: 0 -1px 0 rgba(0, 0, 0, 0.25);
-  background-color: #006dcc;
-  background-image: -moz-linear-gradient(top, #0088cc, #0044cc);
-  background-image: -webkit-gradient(linear, 0 0, 0 100%, from(#0088cc), to(#0044cc));
-  background-image: -webkit-linear-gradient(top, #0088cc, #0044cc);
-  background-image: -o-linear-gradient(top, #0088cc, #0044cc);
-  background-image: linear-gradient(to bottom, #0088cc, #0044cc);
-  background-repeat: repeat-x;
-  border-color: #0044cc #0044cc #002a80;
-  border-color: rgba(0, 0, 0, 0.1) rgba(0, 0, 0, 0.1) rgba(0, 0, 0, 0.25);
-  filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#ff0088cc', endColorstr='#ff0044cc', GradientType=0);
-  filter: progid:DXImageTransform.Microsoft.gradient(enabled=false);
+  background-color: #0088cc;
 }
 
 .btn-primary:hover,
-.btn-primary:active,
-.btn-primary.active,
-.btn-primary.disabled,
-.btn-primary[disabled] {
-  color: #ffffff;
-  background-color: #0044cc;
-}
-
 .btn-primary:active,
 .btn-primary.active {
-  background-color: #003399 \9;
+  color: #ffffff;
+  background-color: #006699;
 }
 
 .btn-warning {
   color: #ffffff;
-  text-shadow: 0 -1px 0 rgba(0, 0, 0, 0.25);
-  background-color: #faa732;
-  background-image: -moz-linear-gradient(top, #fbb450, #f89406);
-  background-image: -webkit-gradient(linear, 0 0, 0 100%, from(#fbb450), to(#f89406));
-  background-image: -webkit-linear-gradient(top, #fbb450, #f89406);
-  background-image: -o-linear-gradient(top, #fbb450, #f89406);
-  background-image: linear-gradient(to bottom, #fbb450, #f89406);
-  background-repeat: repeat-x;
-  border-color: #f89406 #f89406 #ad6704;
-  border-color: rgba(0, 0, 0, 0.1) rgba(0, 0, 0, 0.1) rgba(0, 0, 0, 0.25);
-  filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#fffbb450', endColorstr='#fff89406', GradientType=0);
-  filter: progid:DXImageTransform.Microsoft.gradient(enabled=false);
+  background-color: #fbb450;
 }
 
 .btn-warning:hover,
-.btn-warning:active,
-.btn-warning.active,
-.btn-warning.disabled,
-.btn-warning[disabled] {
-  color: #ffffff;
-  background-color: #f89406;
-}
-
 .btn-warning:active,
 .btn-warning.active {
-  background-color: #c67605 \9;
+  color: #ffffff;
+  background-color: #fa9f1e;
 }
 
 .btn-danger {
   color: #ffffff;
-  text-shadow: 0 -1px 0 rgba(0, 0, 0, 0.25);
-  background-color: #da4f49;
-  background-image: -moz-linear-gradient(top, #ee5f5b, #bd362f);
-  background-image: -webkit-gradient(linear, 0 0, 0 100%, from(#ee5f5b), to(#bd362f));
-  background-image: -webkit-linear-gradient(top, #ee5f5b, #bd362f);
-  background-image: -o-linear-gradient(top, #ee5f5b, #bd362f);
-  background-image: linear-gradient(to bottom, #ee5f5b, #bd362f);
-  background-repeat: repeat-x;
-  border-color: #bd362f #bd362f #802420;
-  border-color: rgba(0, 0, 0, 0.1) rgba(0, 0, 0, 0.1) rgba(0, 0, 0, 0.25);
-  filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#ffee5f5b', endColorstr='#ffbd362f', GradientType=0);
-  filter: progid:DXImageTransform.Microsoft.gradient(enabled=false);
+  background-color: #ee5f5b;
 }
 
 .btn-danger:hover,
-.btn-danger:active,
-.btn-danger.active,
-.btn-danger.disabled,
-.btn-danger[disabled] {
-  color: #ffffff;
-  background-color: #bd362f;
-}
-
 .btn-danger:active,
 .btn-danger.active {
-  background-color: #942a25 \9;
+  color: #ffffff;
+  background-color: #e9322d;
 }
 
 .btn-success {
   color: #ffffff;
-  text-shadow: 0 -1px 0 rgba(0, 0, 0, 0.25);
-  background-color: #5bb75b;
-  background-image: -moz-linear-gradient(top, #62c462, #51a351);
-  background-image: -webkit-gradient(linear, 0 0, 0 100%, from(#62c462), to(#51a351));
-  background-image: -webkit-linear-gradient(top, #62c462, #51a351);
-  background-image: -o-linear-gradient(top, #62c462, #51a351);
-  background-image: linear-gradient(to bottom, #62c462, #51a351);
-  background-repeat: repeat-x;
-  border-color: #51a351 #51a351 #387038;
-  border-color: rgba(0, 0, 0, 0.1) rgba(0, 0, 0, 0.1) rgba(0, 0, 0, 0.25);
-  filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#ff62c462', endColorstr='#ff51a351', GradientType=0);
-  filter: progid:DXImageTransform.Microsoft.gradient(enabled=false);
+  background-color: #62c462;
 }
 
 .btn-success:hover,
-.btn-success:active,
-.btn-success.active,
-.btn-success.disabled,
-.btn-success[disabled] {
-  color: #ffffff;
-  background-color: #51a351;
-}
-
 .btn-success:active,
 .btn-success.active {
-  background-color: #408140 \9;
-}
-
-.btn-info {
   color: #ffffff;
-  text-shadow: 0 -1px 0 rgba(0, 0, 0, 0.25);
-  background-color: #49afcd;
-  background-image: -moz-linear-gradient(top, #5bc0de, #2f96b4);
-  background-image: -webkit-gradient(linear, 0 0, 0 100%, from(#5bc0de), to(#2f96b4));
-  background-image: -webkit-linear-gradient(top, #5bc0de, #2f96b4);
-  background-image: -o-linear-gradient(top, #5bc0de, #2f96b4);
-  background-image: linear-gradient(to bottom, #5bc0de, #2f96b4);
-  background-repeat: repeat-x;
-  border-color: #2f96b4 #2f96b4 #1f6377;
-  border-color: rgba(0, 0, 0, 0.1) rgba(0, 0, 0, 0.1) rgba(0, 0, 0, 0.25);
-  filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#ff5bc0de', endColorstr='#ff2f96b4', GradientType=0);
-  filter: progid:DXImageTransform.Microsoft.gradient(enabled=false);
-}
-
-.btn-info:hover,
-.btn-info:active,
-.btn-info.active,
-.btn-info.disabled,
-.btn-info[disabled] {
-  color: #ffffff;
-  background-color: #2f96b4;
-}
-
-.btn-info:active,
-.btn-info.active {
-  background-color: #24748c \9;
-}
-
-.btn-inverse {
-  color: #ffffff;
-  text-shadow: 0 -1px 0 rgba(0, 0, 0, 0.25);
-  background-color: #363636;
-  background-image: -moz-linear-gradient(top, #444444, #222222);
-  background-image: -webkit-gradient(linear, 0 0, 0 100%, from(#444444), to(#222222));
-  background-image: -webkit-linear-gradient(top, #444444, #222222);
-  background-image: -o-linear-gradient(top, #444444, #222222);
-  background-image: linear-gradient(to bottom, #444444, #222222);
-  background-repeat: repeat-x;
-  border-color: #222222 #222222 #000000;
-  border-color: rgba(0, 0, 0, 0.1) rgba(0, 0, 0, 0.1) rgba(0, 0, 0, 0.25);
-  filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#ff444444', endColorstr='#ff222222', GradientType=0);
-  filter: progid:DXImageTransform.Microsoft.gradient(enabled=false);
-}
-
-.btn-inverse:hover,
-.btn-inverse:active,
-.btn-inverse.active,
-.btn-inverse.disabled,
-.btn-inverse[disabled] {
-  color: #ffffff;
-  background-color: #222222;
-}
-
-.btn-inverse:active,
-.btn-inverse.active {
-  background-color: #080808 \9;
+  background-color: #42b142;
 }
 
 .btn-link,
@@ -3020,14 +2903,6 @@ input[type="button"].btn-block {
   background-color: #51a351;
 }
 
-.btn-group.open .btn-info.dropdown-toggle {
-  background-color: #2f96b4;
-}
-
-.btn-group.open .btn-inverse.dropdown-toggle {
-  background-color: #222222;
-}
-
 .btn .caret {
   margin-top: 8px;
   margin-left: 0;
@@ -3654,35 +3529,17 @@ input[type="button"].btn-block {
   padding: 7px 10px;
   margin-right: 5px;
   margin-left: 5px;
-  color: #ffffff;
-  text-shadow: 0 -1px 0 rgba(0, 0, 0, 0.25);
-  background-color: #ededed;
-  background-image: -moz-linear-gradient(top, #f2f2f2, #e5e5e5);
-  background-image: -webkit-gradient(linear, 0 0, 0 100%, from(#f2f2f2), to(#e5e5e5));
-  background-image: -webkit-linear-gradient(top, #f2f2f2, #e5e5e5);
-  background-image: -o-linear-gradient(top, #f2f2f2, #e5e5e5);
-  background-image: linear-gradient(to bottom, #f2f2f2, #e5e5e5);
-  background-repeat: repeat-x;
-  border-color: #e5e5e5 #e5e5e5 #bfbfbf;
-  border-color: rgba(0, 0, 0, 0.1) rgba(0, 0, 0, 0.1) rgba(0, 0, 0, 0.25);
-  filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#fff2f2f2', endColorstr='#ffe5e5e5', GradientType=0);
-  filter: progid:DXImageTransform.Microsoft.gradient(enabled=false);
+  color: #e5e5e5;
+  background-color: #f2f2f2;
   -webkit-box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.1), 0 1px 0 rgba(255, 255, 255, 0.075);
           box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.1), 0 1px 0 rgba(255, 255, 255, 0.075);
 }
 
 .navbar .btn-navbar:hover,
-.navbar .btn-navbar:active,
-.navbar .btn-navbar.active,
-.navbar .btn-navbar.disabled,
-.navbar .btn-navbar[disabled] {
-  color: #ffffff;
-  background-color: #e5e5e5;
-}
-
 .navbar .btn-navbar:active,
 .navbar .btn-navbar.active {
-  background-color: #cccccc \9;
+  color: #e5e5e5;
+  background-color: #d9d9d9;
 }
 
 .navbar .btn-navbar .icon-bar {
@@ -3906,33 +3763,15 @@ input[type="button"].btn-block {
 }
 
 .navbar-inverse .btn-navbar {
-  color: #ffffff;
-  text-shadow: 0 -1px 0 rgba(0, 0, 0, 0.25);
-  background-color: #0e0e0e;
-  background-image: -moz-linear-gradient(top, #151515, #040404);
-  background-image: -webkit-gradient(linear, 0 0, 0 100%, from(#151515), to(#040404));
-  background-image: -webkit-linear-gradient(top, #151515, #040404);
-  background-image: -o-linear-gradient(top, #151515, #040404);
-  background-image: linear-gradient(to bottom, #151515, #040404);
-  background-repeat: repeat-x;
-  border-color: #040404 #040404 #000000;
-  border-color: rgba(0, 0, 0, 0.1) rgba(0, 0, 0, 0.1) rgba(0, 0, 0, 0.25);
-  filter: progid:DXImageTransform.Microsoft.gradient(startColorstr='#ff151515', endColorstr='#ff040404', GradientType=0);
-  filter: progid:DXImageTransform.Microsoft.gradient(enabled=false);
+  color: #040404;
+  background-color: #151515;
 }
 
 .navbar-inverse .btn-navbar:hover,
-.navbar-inverse .btn-navbar:active,
-.navbar-inverse .btn-navbar.active,
-.navbar-inverse .btn-navbar.disabled,
-.navbar-inverse .btn-navbar[disabled] {
-  color: #ffffff;
-  background-color: #040404;
-}
-
 .navbar-inverse .btn-navbar:active,
 .navbar-inverse .btn-navbar.active {
-  background-color: #000000 \9;
+  color: #040404;
+  background-color: #000000;
 }
 
 .breadcrumb {
diff --git a/docs/css.html b/docs/css.html
index 20900ec9c4..dd279a6b4c 100644
--- a/docs/css.html
+++ b/docs/css.html
@@ -1729,8 +1729,8 @@ For example, &lt;code&gt;&lt;section&gt;&lt;/code&gt; should be wrapped as inlin
             </thead>
             <tbody>
               <tr>
-                <td><button type="button" class="btn">Default</button></td>
-                <td><code>btn</code></td>
+                <td><button type="button" class="btn btn-default">Default</button></td>
+                <td><code>btn btn-default</code></td>
                 <td>Standard gray button with gradient</td>
               </tr>
               <tr>
@@ -1738,11 +1738,6 @@ For example, &lt;code&gt;&lt;section&gt;&lt;/code&gt; should be wrapped as inlin
                 <td><code>btn btn-primary</code></td>
                 <td>Provides extra visual weight and identifies the primary action in a set of buttons</td>
               </tr>
-              <tr>
-                <td><button type="button" class="btn btn-info">Info</button></td>
-                <td><code>btn btn-info</code></td>
-                <td>Used as an alternative to the default styles</td>
-              </tr>
               <tr>
                 <td><button type="button" class="btn btn-success">Success</button></td>
                 <td><code>btn btn-success</code></td>
@@ -1758,11 +1753,6 @@ For example, &lt;code&gt;&lt;section&gt;&lt;/code&gt; should be wrapped as inlin
                 <td><code>btn btn-danger</code></td>
                 <td>Indicates a dangerous or potentially negative action</td>
               </tr>
-              <tr>
-                <td><button type="button" class="btn btn-inverse">Inverse</button></td>
-                <td><code>btn btn-inverse</code></td>
-                <td>Alternate dark gray button, not tied to a semantic action or use</td>
-              </tr>
               <tr>
                 <td><button type="button" class="btn btn-link">Link</button></td>
                 <td><code>btn btn-link</code></td>
diff --git a/docs/templates/pages/css.mustache b/docs/templates/pages/css.mustache
index d6607d7039..ff73aef5b7 100644
--- a/docs/templates/pages/css.mustache
+++ b/docs/templates/pages/css.mustache
@@ -1669,8 +1669,8 @@ For example, &lt;code&gt;&lt;section&gt;&lt;/code&gt; should be wrapped as inlin
             </thead>
             <tbody>
               <tr>
-                <td><button type="button" class="btn">Default</button></td>
-                <td><code>btn</code></td>
+                <td><button type="button" class="btn btn-default">Default</button></td>
+                <td><code>btn btn-default</code></td>
                 <td>Standard gray button with gradient</td>
               </tr>
               <tr>
@@ -1678,11 +1678,6 @@ For example, &lt;code&gt;&lt;section&gt;&lt;/code&gt; should be wrapped as inlin
                 <td><code>btn btn-primary</code></td>
                 <td>Provides extra visual weight and identifies the primary action in a set of buttons</td>
               </tr>
-              <tr>
-                <td><button type="button" class="btn btn-info">Info</button></td>
-                <td><code>btn btn-info</code></td>
-                <td>Used as an alternative to the default styles</td>
-              </tr>
               <tr>
                 <td><button type="button" class="btn btn-success">Success</button></td>
                 <td><code>btn btn-success</code></td>
@@ -1698,11 +1693,6 @@ For example, &lt;code&gt;&lt;section&gt;&lt;/code&gt; should be wrapped as inlin
                 <td><code>btn btn-danger</code></td>
                 <td>Indicates a dangerous or potentially negative action</td>
               </tr>
-              <tr>
-                <td><button type="button" class="btn btn-inverse">Inverse</button></td>
-                <td><code>btn btn-inverse</code></td>
-                <td>Alternate dark gray button, not tied to a semantic action or use</td>
-              </tr>
               <tr>
                 <td><button type="button" class="btn btn-link">Link</button></td>
                 <td><code>btn btn-link</code></td>
diff --git a/less/button-groups.less b/less/button-groups.less
index 4648245c7d..01f84517f9 100644
--- a/less/button-groups.less
+++ b/less/button-groups.less
@@ -137,12 +137,6 @@
   .btn-success.dropdown-toggle {
     background-color: @btn-backround-success-highlight;
   }
-  .btn-info.dropdown-toggle {
-    background-color: @btn-backround-info-highlight;
-  }
-  .btn-inverse.dropdown-toggle {
-    background-color: @btn-backround-inverse-highlight;
-  }
 }
 
 
diff --git a/less/buttons.less b/less/buttons.less
index 1133192926..0aca982b2b 100644
--- a/less/buttons.less
+++ b/less/buttons.less
@@ -6,6 +6,59 @@
 // Base styles
 // --------------------------------------------------
 
+// Core styles
+.btn {
+  display: inline-block;
+  padding: 7px 13px;
+  margin-bottom: 0; // For input.btn
+  font-size: @font-size-base;
+  font-weight: bold;
+  line-height: @line-height-base;
+  text-align: center;
+  vertical-align: middle;
+  cursor: pointer;
+  border: 0;
+  border-radius: @border-radius-base;
+  //.transition(all .075s ease-in-out);
+
+  &:focus {
+    .tab-focus();
+  }
+
+  &:hover {
+    text-decoration: none;
+  }
+
+  &:active,
+  &.active {
+    outline: 0;
+    .box-shadow(~"inset 0 2px 4px rgba(0,0,0,.15), 0 1px 2px rgba(0,0,0,.05)");
+  }
+
+  &.disabled,
+  &[disabled] {
+    cursor: default;
+    .opacity(65);
+    .box-shadow(none);
+  }
+
+}
+
+// Default button visuals
+.btn-default {
+  padding: 6px 12px;
+  color: #5a5a5a;
+  background-color: #fff;
+  border: 1px solid #ccc;
+
+  &:hover {
+    color: #fff;
+    background-color: #999;
+    border-color: #999;
+  }
+}
+
+/*
 // Core
 .btn {
   display: inline-block;
@@ -57,7 +110,7 @@
   }
 
 }
-
+*/
 
 // Button Sizes
 // -------------------------
@@ -126,47 +179,21 @@ input[type="button"] {
 // Alternate buttons
 // --------------------------------------------------
 
-// Provide *some* extra contrast for those who can get it
-.btn-primary.active,
-.btn-warning.active,
-.btn-danger.active,
-.btn-success.active,
-.btn-info.active,
-.btn-inverse.active {
-  color: rgba(255,255,255,.75);
-}
-
-// Set the backgrounds
-// -------------------------
-.btn {
-  // reset here as of 2.0.3 due to Recess property order
-  border-color: #c5c5c5;
-  border-color: rgba(0,0,0,.15) rgba(0,0,0,.15) rgba(0,0,0,.25);
-}
 .btn-primary {
-  .buttonBackground(@btn-backround-primary, @btn-backround-primary-highlight);
+  .buttonBackground(@btn-backround-primary);
 }
 // Warning appears are orange
 .btn-warning {
-  .buttonBackground(@btn-backround-warning, @btn-backround-warning-highlight);
+  .buttonBackground(@btn-backround-warning);
 }
 // Danger and error appear as red
 .btn-danger {
-  .buttonBackground(@btn-backround-danger, @btn-backround-danger-highlight);
+  .buttonBackground(@btn-backround-danger);
 }
 // Success appears as green
 .btn-success {
-  .buttonBackground(@btn-backround-success, @btn-backround-success-highlight);
+  .buttonBackground(@btn-backround-success);
 }
-// Info appears as a neutral blue
-.btn-info {
-  .buttonBackground(@btn-backround-info, @btn-backround-info-highlight);
-}
-// Inverse appears as dark gray
-.btn-inverse {
-  .buttonBackground(@btn-backround-inverse, @btn-backround-inverse-highlight);
-}
-
 
 
 // Link buttons
diff --git a/less/mixins.less b/less/mixins.less
index 1da2758634..13d9ad2054 100644
--- a/less/mixins.less
+++ b/less/mixins.less
@@ -405,25 +405,17 @@
 
 // Button backgrounds
 // ------------------
-.buttonBackground(@startColor, @endColor, @text-color: #fff, @textShadow: 0 -1px 0 rgba(0,0,0,.25)) {
+.buttonBackground(@background-color: #333, @text-color: #fff) {
   color: @text-color;
-  text-shadow: @textShadow;
-  #gradient > .vertical(@startColor, @endColor);
-  border-color: @endColor @endColor darken(@endColor, 15%);
-  border-color: rgba(0,0,0,.1) rgba(0,0,0,.1) fadein(rgba(0,0,0,.1), 15%);
-  .reset-filter();
+  background-color: @background-color;
 
-  // in these cases the gradient won't cover the background, so we override
-  &:hover, &:active, &.active, &.disabled, &[disabled] {
-    color: @text-color;
-    background-color: @endColor;
-  }
-
-  // IE8 can't handle box-shadow to show active, so we darken a bit ourselves
+  &:hover,
   &:active,
   &.active {
-    background-color: darken(@endColor, 10%) e("\9");
+    color: @text-color;
+    background-color: darken(@background-color, 10%);
   }
+
 }
 
 
diff --git a/less/variables.less b/less/variables.less
index 9b85f3574e..d881f55aa7 100644
--- a/less/variables.less
+++ b/less/variables.less
@@ -82,9 +82,6 @@
 @btn-backround-primary:              @link-color;
 @btn-backround-primary-highlight:    spin(@btn-backround-primary, 20%);
 
-@btn-backround-info:                 #5bc0de;
-@btn-backround-info-highlight:       #2f96b4;
-
 @btn-backround-success:              #62c462;
 @btn-backround-success-highlight:    #51a351;
 
@@ -94,9 +91,6 @@
 @btn-backround-danger:               #ee5f5b;
 @btn-backround-danger-highlight:     #bd362f;
 
-@btn-backround-inverse:              #444;
-@btn-backround-inverse-highlight:    @grayDarker;
-
 
 // Forms
 // -------------------------