Some refinements.

Paper/gtk-3.0/apps/gnome-terminal.css

@@ -19,6 +19,7 @@
 @define-color terminal #dbdee0;
 @define-color terminal_background #002B36;
 @define-color terminal_text #839495;
+@define-color terminal_window #636E73;
 @define-color terminal_window_text #dbdee0;
 @define-color backdrop_terminal_window_text  shade(@terminal_window_text, 0.8);
 @define-color insensitive_terminal_window_text  shade(@terminal_window_text, 0.95);
@@ -72,36 +73,9 @@ TerminalWindow .dynamic-notebook tab.top:active {
     box-shadow:inset 0 -3px 0 0 @terminal;
 }
 
-TerminalNotebook tab.bottom:active,
-TerminalWindow .notebook tab.bottom:active,
-TerminalWindow .dynamic-notebook tab.bottom:active {
-    box-shadow:inset 0 3px 0 0 @terminal;
-}
-
-TerminalNotebook tab.left:active,
-TerminalWindow .notebook tab.left:active,
-TerminalWindow .dynamic-notebook tab.left:active {
-    box-shadow:inset -3px 0 0 0 @terminal;
-}
-
-TerminalNotebook tab.right:active,
-TerminalWindow .notebook tab.right:active,
-TerminalWindow .dynamic-notebook tab.right:active {
-    box-shadow:inset 3px 0 0 0 @terminal;
-}
-
 /* Normal */
 TerminalWindow .notebook tab.top {
-    box-shadow:inset 0 -1px 0 0 alpha(#000, 0.2);
-}
-TerminalWindow .notebook tab.bottom {
-    box-shadow:inset 0 1px 0 0 alpha(#000, 0.2);
-}
-TerminalWindow .notebook tab.left {
-    box-shadow:inset -1px 0 0 0 alpha(#000, 0.2);
-}
-TerminalWindow .notebook tab.right {
-    box-shadow:inset 1px 0 0 0 alpha(#000, 0.2);
+    box-shadow:inset 0 -1px 0 0 @terminal_window;
 }
 
 /*----- Tabs -----*/
@@ -109,18 +83,18 @@ TerminalWindow .notebook tab.right {
 TerminalWindow .notebook tab {
     /*border: none;*/
     border-radius: 0;
-    background: @header;
+    background: @terminal_window;
     color: @terminal_window_text;
 }
 
 TerminalWindow .notebook tab:active {
     border: none;
-    background: @header;
+    background: @terminal_window;
     color: @terminal_window_text;
 }
 
 TerminalWindow .notebook tab:hover {
-    background-color: shade(@header, 1.05);
+    background-color: shade(@terminal_window, 1.05);
     color: alpha(#fff, 0.3);
     transition: all 300ms cubic-bezier(0.3, 0.5, 0.5, 0.9);
 }

Paper/gtk-3.0/apps/unity.css

@@ -25,7 +25,9 @@
 @define-color unity_text #dbdee0; /* Unity window text color */
 @define-color backdrop_unity_text #909598; /* Backdrop Unity window text color */
 @define-color unity_panel #454D50; /* Unity panel color */
+@define-color backdrop_unity_panel shade(@unity_panel, 1.05); /* Backdrop Unity panel color */
 @define-color unity_panel_text #dbdee0;  /* Unity panel text color */
+@define-color backdrop_unity_panel_text shade(@unity_panel_text, 0.95);  /* Backdrop Unity panel text color */
 
 /*********************
  * Unity Decorations *
@@ -84,11 +86,25 @@ UnityDecoration.top:backdrop {
 }
 
 UnityDecoration.left,
-UnityDecoration.right,
+UnityDecoration.right {
+    background-repeat: repeat-x;
+    background-color: shade(@unity, 0.6);
+    background-size: 1px 120px;
+    background-clip: border-box;
+    background-image: linear-gradient(to bottom, 
+                                      @unity,
+                                      shade(@unity, 0.6);
+                                      );
+    background-image: -gtk-gradient (linear, left top, left bottom,
+                                     color-stop (0, @unity),
+                                     color-stop (0.5, @unity),
+                                     color-stop (1, shade(@unity, 0.6)));
+}
+
 UnityDecoration.bottom {
     background-size: 1px;
     background-repeat: repeat-x;
-    background-color: @unity;
+    background-color: shade(@unity, 0.6);
 }
 
 UnityDecoration.left:backdrop,
@@ -110,6 +126,13 @@ UnityPanelWidget,
 	color: @unity_panel_text;
 }
 
+
+UnityPanelWidget:backdrop,
+.unity-panel:backdrop {
+    background-color: @backdrop_unity_panel;
+    color: @backdrop_unity_panel_text;
+}
+
 .unity-panel.menuitem,
 .unity-panel .menuitem {
     border-width: 0 1px;
@@ -167,4 +190,15 @@ UnityPanelWidget,
 /* Force Quit */
 SheetStyleDialog.unity-force-quit {
      background-color: @base;
+}
+
+
+@keyframes playbackmenuitem_spinner {
+    to { -gtk-icon-transform: rotate(1turn); }
+}
+
+.menu IdoPlaybackMenuItem.menuitem:active {
+    -gtk-icon-source: -gtk-icontheme("process-working-symbolic");
+    animation: playbackmenuitem_spinner 1s infinite linear;
+    color: @selected_background;
 }

Paper/gtk-3.0/gtk.css

@@ -30,7 +30,7 @@
 @define-color text @foreground;/* Text color */
 @define-color panel #454D50;/* Panel color */
 @define-color header #636E73;/* Header color */
-@define-color backdrop_header #454D50; /* Header backdrop color */
+@define-color backdrop_header #5A6367; /* Header backdrop color */
 @define-color header_text #fff;/* Header text color */
 @define-color header_text_dark alpha(#000, 0.5);/* Header text color */
 @define-color menu #636E73;/* Menu color */

Paper/gtk-3.0/widgets/message-dialogs.css

@@ -22,7 +22,7 @@
 
 .message-dialog {
     padding: 0px;
-    border-radius: 6px;
+    border-radius: 0px;
     border: none;
     outline: none;
     box-shadow: none;

Paper/metacity-1/metacity-theme.xml

@@ -35,6 +35,15 @@
 <constant name="C_title_focused" value="#D3D4D5" />
 <constant name="C_title_unfocused" value="#929A9D" />
 
+<constant name="C_wm_button_background" value="#dbdee0" />
+<constant name="C_wm_button_foreground" value="#AFB2B3" />
+<constant name="C_wm_button_unfocused" value="#909598" />
+
+<constant name="C_close_button" value="#f5685d" />
+<constant name="C_maximize_button" value="#a1ce6d" />
+<constant name="C_restore_button" value="#feee61" />
+<constant name="C_minimize_button" value="#8b96d2" />
+
 <!-- GEOMETRY -->
 
 <!-- Focused window -->

Paper/unity/progress_bar_fill.svg

@@ -14,7 +14,7 @@
    height="6"
    id="svg2"
    version="1.1"
-   inkscape:version="0.48.4 r9939"
+   inkscape:version="0.91 r"
    inkscape:export-filename="/home/marco/Dev/unity/trunk/resources/progress_bar_trough_150.png"
    inkscape:export-xdpi="250"
    inkscape:export-ydpi="250"
@@ -110,33 +110,24 @@
          offset="1"
          id="stop3852" />
     </linearGradient>
-    <linearGradient
-       y2="30"
-       x2="25"
-       y1="24"
-       x1="25"
-       gradientUnits="userSpaceOnUse"
-       id="linearGradient3897"
-       xlink:href="#linearGradient3848"
-       inkscape:collect="always" />
   </defs>
   <sodipodi:namedview
      id="base"
-     pagecolor="#12f82b"
+     pagecolor="#767676"
      bordercolor="#666666"
      borderopacity="1.0"
      inkscape:pageopacity="0"
      inkscape:pageshadow="2"
      inkscape:zoom="1"
-     inkscape:cx="31.727868"
-     inkscape:cy="27.178915"
+     inkscape:cx="22"
+     inkscape:cy="2.99998"
      inkscape:document-units="px"
      inkscape:current-layer="layer2"
      showgrid="false"
-     inkscape:window-width="1364"
+     inkscape:window-width="1299"
      inkscape:window-height="700"
-     inkscape:window-x="0"
-     inkscape:window-y="28"
+     inkscape:window-x="65"
+     inkscape:window-y="34"
      inkscape:window-maximized="0" />
   <metadata
      id="metadata7">
@@ -146,7 +137,7 @@
         <dc:format>image/svg+xml</dc:format>
         <dc:type
            rdf:resource="http://purl.org/dc/dcmitype/StillImage" />
-        <dc:title />
+        <dc:title></dc:title>
       </cc:Work>
     </rdf:RDF>
   </metadata>
@@ -157,8 +148,8 @@
      style="display:inline"
      transform="translate(0,-1046.3622)">
     <g
-       transform="matrix(1,0,0,-1,-5,2074.7244)"
-       style="display:inline"
+       transform="translate(-5,24.00004)"
+       style="display:inline;fill:#9fb0b9;fill-opacity:1"
        id="g3876">
       <rect
          ry="3"
@@ -168,7 +159,7 @@
          height="6"
          width="44"
          id="rect3846"
-         style="fill:url(#linearGradient3897);fill-opacity:1;stroke:none" />
+         style="fill:#9fb0b9;fill-opacity:1;stroke:none" />
     </g>
   </g>
 </svg>

Paper/unity/progress_bar_trough.svg

@@ -14,7 +14,7 @@
    height="54"
    id="svg2"
    version="1.1"
-   inkscape:version="0.48.4 r9939"
+   inkscape:version="0.91 r"
    inkscape:export-filename="/home/marco/Dev/unity/trunk/resources/progress_bar_trough_150.png"
    inkscape:export-xdpi="250"
    inkscape:export-ydpi="250"
@@ -163,15 +163,6 @@
        y1="24"
        x2="25"
        y2="30" />
-    <linearGradient
-       inkscape:collect="always"
-       xlink:href="#linearGradient3848"
-       id="linearGradient3920"
-       gradientUnits="userSpaceOnUse"
-       x1="25"
-       y1="24"
-       x2="25"
-       y2="30" />
   </defs>
   <sodipodi:namedview
      id="base"
@@ -181,15 +172,15 @@
      inkscape:pageopacity="1"
      inkscape:pageshadow="2"
      inkscape:zoom="1"
-     inkscape:cx="30.036196"
-     inkscape:cy="23.447312"
+     inkscape:cx="35.414619"
+     inkscape:cy="23.338635"
      inkscape:document-units="px"
      inkscape:current-layer="layer2"
      showgrid="false"
-     inkscape:window-width="1364"
-     inkscape:window-height="700"
-     inkscape:window-x="0"
-     inkscape:window-y="28"
+     inkscape:window-width="1301"
+     inkscape:window-height="744"
+     inkscape:window-x="65"
+     inkscape:window-y="24"
      inkscape:window-maximized="1">
     <inkscape:grid
        type="xygrid"
@@ -251,12 +242,13 @@
        ry="3.5"
        inkscape:export-filename="/tmp/progress.png"
        inkscape:export-xdpi="90"
-       inkscape:export-ydpi="90" />
+       inkscape:export-ydpi="90"
+       id="rect37" />
     <g
        id="g3876"
        transform="matrix(1,0,0,-1,0,2050.7244)">
       <rect
-         style="opacity:0.2;fill:none;stroke:#000000;stroke-width:2;stroke-miterlimit:4;stroke-opacity:1;stroke-dasharray:none"
+         style="opacity:0.5;fill:none;stroke:#000000;stroke-width:2;stroke-miterlimit:4;stroke-opacity:1;stroke-dasharray:none"
          id="rect3874"
          width="44"
          height="6"
@@ -272,7 +264,7 @@
          height="6"
          width="44"
          id="rect3846"
-         style="fill:url(#linearGradient3920);fill-opacity:1;stroke:none" />
+         style="fill:#efefef;fill-opacity:1;stroke:none" />
     </g>
   </g>
 </svg>