diff --git a/Camera-container.html b/Camera-container.html
index c6c1900..ab35575 100644
--- a/Camera-container.html
+++ b/Camera-container.html
@@ -19,7 +19,7 @@
   </style>
 <style>
   .nav-list a.active, .sub-nav-list a.active {
-    background-color: #ffffff !important;
+    background-color: #c8c8c8 !important;
   }
 </style>
 <style>
diff --git a/Cylindrical_Lens_Flex.html b/Cylindrical_Lens_Flex.html
index 40c815d..37b9dc5 100644
--- a/Cylindrical_Lens_Flex.html
+++ b/Cylindrical_Lens_Flex.html
@@ -19,7 +19,7 @@
   </style>
 <style>
   .nav-list a.active, .sub-nav-list a.active {
-    background-color: #ffffff !important;
+    background-color: #c8c8c8 !important;
   }
 </style>
 <style>
@@ -110,6 +110,9 @@ <h2 class="page-step" id="screw-the-printed-parts">Step 1: Screw the printed par
 <p>Take the flex desired piece, which can be the <a href="models/Flexure_cylindrical_lens_holder/Flexure_cylindrical_lens_holder-cyl-lens-holder-flex.html">Lens - Holder</a> or the <a href="models/Flexure_cylindrical_lens_holder/Flexure_cylindrical_lens_holder-cyl-lens-holder-extra-tall.html">Taller Lens - Holder</a> and close it with the <a href="models/Flexure_cylindrical_lens_holder/Flexure_cylindrical_lens_holder-cyl-lens-holder-lid.html">Holder Lid</a> using <a href="parts/tools/2mmBallEndAllenKey.html">2mm Ball-end Allen key</a> and 4 <a href="parts/mech/M2.5-8.html">M2.5 x 8 mm screw</a></p>
 <h2 class="page-step" id="place-the-lens">Step 2: Place the lens:</h2>
 <p>Take the <a href="parts/optics/LJ1328L2-A.html">LJ1328L2-A</a> or the <a href="parts/optics/LJ1567L2-A.html">LJ1567L2-A</a> lens and place it into the <a href="models/Flexure_cylindrical_lens_holder/Flexure_cylindrical_lens_holder-cyl-lens-holder-flex.html">Lens - Holder</a> or <a href="models/Flexure_cylindrical_lens_holder/Flexure_cylindrical_lens_holder-cyl-lens-holder-extra-tall.html">Taller Lens - Holder</a> respectively.</p>
+<div class="caution-block">
+<p>Do not touch the lens directly to avoid getting it dirty or scratched.</p>
+</div>
 <h2 class="page-step" id="put-it-in-a-cube">Step 3: Put it in a cube!:</h2>
 <p>Take one of your <a href="UC2files.html" title="">UC2 cubes</a> and place your assembled piece in it. You can purchase the cube or 3D print it, either option works fine.</p>
     </div>
diff --git a/Kinematic_Mirrors.html b/Kinematic_Mirrors.html
index d16786f..f055532 100644
--- a/Kinematic_Mirrors.html
+++ b/Kinematic_Mirrors.html
@@ -19,7 +19,7 @@
   </style>
 <style>
   .nav-list a.active, .sub-nav-list a.active {
-    background-color: #ffffff !important;
+    background-color: #c8c8c8 !important;
   }
 </style>
 <style>
diff --git a/LICENSE.html b/LICENSE.html
index 6151aa2..4a90739 100644
--- a/LICENSE.html
+++ b/LICENSE.html
@@ -19,7 +19,7 @@
   </style>
 <style>
   .nav-list a.active, .sub-nav-list a.active {
-    background-color: #ffffff !important;
+    background-color: #c8c8c8 !important;
   }
 </style>
 <style>
diff --git a/Power_lens_XY_aligner.html b/Power_lens_XY_aligner.html
index ed5f870..dc33888 100644
--- a/Power_lens_XY_aligner.html
+++ b/Power_lens_XY_aligner.html
@@ -19,7 +19,7 @@
   </style>
 <style>
   .nav-list a.active, .sub-nav-list a.active {
-    background-color: #ffffff !important;
+    background-color: #c8c8c8 !important;
   }
 </style>
 <style>
diff --git a/Prepare.html b/Prepare.html
index 2e578b9..40e950b 100644
--- a/Prepare.html
+++ b/Prepare.html
@@ -19,7 +19,7 @@
   </style>
 <style>
   .nav-list a.active, .sub-nav-list a.active {
-    background-color: #ffffff !important;
+    background-color: #c8c8c8 !important;
   }
 </style>
 <style>
diff --git a/Sanding.html b/Sanding.html
index 983bc75..ee51ff2 100644
--- a/Sanding.html
+++ b/Sanding.html
@@ -19,7 +19,7 @@
   </style>
 <style>
   .nav-list a.active, .sub-nav-list a.active {
-    background-color: #ffffff !important;
+    background-color: #c8c8c8 !important;
   }
 </style>
 <style>
diff --git a/Stepper_Motor_Container.html b/Stepper_Motor_Container.html
index 313a502..bc68be8 100644
--- a/Stepper_Motor_Container.html
+++ b/Stepper_Motor_Container.html
@@ -19,7 +19,7 @@
   </style>
 <style>
   .nav-list a.active, .sub-nav-list a.active {
-    background-color: #ffffff !important;
+    background-color: #c8c8c8 !important;
   }
 </style>
 <style>
@@ -143,8 +143,12 @@ <h2 class="page-step" id="close-the-cubes">Step 6: Close the cubes:</h2>
 <li>Using the 2 <a href="models/Stepper_Motor_Container/LightSheet_Remake-New_Axis_Cube_Top.html">axis cube tops</a> close the <a href="models/Stepper_Motor_Container/LightSheet_Remake-New_Axis_Cube.html">new axis cubes</a>. For that take 4 <a href="parts/mech/M3-10.html">M3 x 10mm screw</a> and tight them with the <a href="parts/tools/2.5mmBallEndAllenKey.html">Allen key</a>, then do the same with the 2 <a href="UC2files.html" title="">UC2 cubes</a>.</li>
 </ul>
 <h2 class="page-step" id="the-objective">Step 7: The Objective:</h2>
-<p>Screw the desired <a href="parts/optics/objective.html">objective</a> in the <a href="models/Stepper_Motor_Container/LightSheet_Remake-Objective_arm.html">Objective arm</a></p>
+<p>Carefully screw the needed <a href="parts/optics/objective.html">objective</a> into the <a href="models/Stepper_Motor_Container/LightSheet_Remake-Objective_arm.html">Objective arm</a>.</p>
 <p><img alt="" src="images/Stepper_Motor_Container/objective-arm-installed.jpg" title="" /></p>
+<div class="caution-block">
+<p>Do not touch the lens directly to avoid getting it dirty or scratched.</p>
+</div>
+<hr />
 <h1 id="now-its-ready">Now it's ready!</h1>
     </div>
 </div>
diff --git a/UC2files.html b/UC2files.html
index 0a56c30..a9fb26d 100644
--- a/UC2files.html
+++ b/UC2files.html
@@ -19,7 +19,7 @@
   </style>
 <style>
   .nav-list a.active, .sub-nav-list a.active {
-    background-color: #ffffff !important;
+    background-color: #c8c8c8 !important;
   }
 </style>
 <style>
diff --git a/adjustable_slit.html b/adjustable_slit.html
index 83f417b..890d84e 100644
--- a/adjustable_slit.html
+++ b/adjustable_slit.html
@@ -19,7 +19,7 @@
   </style>
 <style>
   .nav-list a.active, .sub-nav-list a.active {
-    background-color: #ffffff !important;
+    background-color: #c8c8c8 !important;
   }
 </style>
 <style>
diff --git a/control-Interface.html b/control-Interface.html
index 31530b6..216850f 100644
--- a/control-Interface.html
+++ b/control-Interface.html
@@ -19,7 +19,7 @@
   </style>
 <style>
   .nav-list a.active, .sub-nav-list a.active {
-    background-color: #ffffff !important;
+    background-color: #c8c8c8 !important;
   }
 </style>
 <style>
diff --git a/filter_holder.html b/filter_holder.html
index eb565cb..112fdec 100644
--- a/filter_holder.html
+++ b/filter_holder.html
@@ -19,7 +19,7 @@
   </style>
 <style>
   .nav-list a.active, .sub-nav-list a.active {
-    background-color: #ffffff !important;
+    background-color: #c8c8c8 !important;
   }
 </style>
 <style>
diff --git a/gallery.html b/gallery.html
index ee508f1..912572f 100644
--- a/gallery.html
+++ b/gallery.html
@@ -19,7 +19,7 @@
   </style>
 <style>
   .nav-list a.active, .sub-nav-list a.active {
-    background-color: #ffffff !important;
+    background-color: #c8c8c8 !important;
   }
 </style>
 <style>
diff --git a/index.html b/index.html
index f571567..76b6daa 100644
--- a/index.html
+++ b/index.html
@@ -19,7 +19,7 @@
   </style>
 <style>
   .nav-list a.active, .sub-nav-list a.active {
-    background-color: #ffffff !important;
+    background-color: #c8c8c8 !important;
   }
 </style>
 <style>
diff --git a/missing.html b/missing.html
index 00c0be3..0a47a03 100644
--- a/missing.html
+++ b/missing.html
@@ -19,7 +19,7 @@
   </style>
 <style>
   .nav-list a.active, .sub-nav-list a.active {
-    background-color: #ffffff !important;
+    background-color: #c8c8c8 !important;
   }
 </style>
 <style>
diff --git a/models/Adjustable_slit/Adjustable-Slit-Knob.html b/models/Adjustable_slit/Adjustable-Slit-Knob.html
index 146b134..359abfc 100644
--- a/models/Adjustable_slit/Adjustable-Slit-Knob.html
+++ b/models/Adjustable_slit/Adjustable-Slit-Knob.html
@@ -20,7 +20,7 @@
   </style>
 <style>
   .nav-list a.active, .sub-nav-list a.active {
-    background-color: #ffffff !important;
+    background-color: #c8c8c8 !important;
   }
 </style>
 <style>
diff --git a/models/Adjustable_slit/Compliant_slit_insert_V2-cap_layer.html b/models/Adjustable_slit/Compliant_slit_insert_V2-cap_layer.html
index b483386..24a8099 100644
--- a/models/Adjustable_slit/Compliant_slit_insert_V2-cap_layer.html
+++ b/models/Adjustable_slit/Compliant_slit_insert_V2-cap_layer.html
@@ -20,7 +20,7 @@
   </style>
 <style>
   .nav-list a.active, .sub-nav-list a.active {
-    background-color: #ffffff !important;
+    background-color: #c8c8c8 !important;
   }
 </style>
 <style>
diff --git a/models/Adjustable_slit/Compliant_slit_insert_V2-flex_layer1.html b/models/Adjustable_slit/Compliant_slit_insert_V2-flex_layer1.html
index 4205117..869c743 100644
--- a/models/Adjustable_slit/Compliant_slit_insert_V2-flex_layer1.html
+++ b/models/Adjustable_slit/Compliant_slit_insert_V2-flex_layer1.html
@@ -20,7 +20,7 @@
   </style>
 <style>
   .nav-list a.active, .sub-nav-list a.active {
-    background-color: #ffffff !important;
+    background-color: #c8c8c8 !important;
   }
 </style>
 <style>
diff --git a/models/Adjustable_slit/Compliant_slit_insert_V2-flex_layer2.html b/models/Adjustable_slit/Compliant_slit_insert_V2-flex_layer2.html
index 3ff33a2..7a05169 100644
--- a/models/Adjustable_slit/Compliant_slit_insert_V2-flex_layer2.html
+++ b/models/Adjustable_slit/Compliant_slit_insert_V2-flex_layer2.html
@@ -20,7 +20,7 @@
   </style>
 <style>
   .nav-list a.active, .sub-nav-list a.active {
-    background-color: #ffffff !important;
+    background-color: #c8c8c8 !important;
   }
 </style>
 <style>
diff --git a/models/Base_Cube/Base_puzzle.html b/models/Base_Cube/Base_puzzle.html
index 2d97bfa..b123b0a 100644
--- a/models/Base_Cube/Base_puzzle.html
+++ b/models/Base_Cube/Base_puzzle.html
@@ -20,7 +20,7 @@
   </style>
 <style>
   .nav-list a.active, .sub-nav-list a.active {
-    background-color: #ffffff !important;
+    background-color: #c8c8c8 !important;
   }
 </style>
 <style>
diff --git a/models/Base_Cube/Single_Base_Cube.html b/models/Base_Cube/Single_Base_Cube.html
index 00e6006..26ef954 100644
--- a/models/Base_Cube/Single_Base_Cube.html
+++ b/models/Base_Cube/Single_Base_Cube.html
@@ -20,7 +20,7 @@
   </style>
 <style>
   .nav-list a.active, .sub-nav-list a.active {
-    background-color: #ffffff !important;
+    background-color: #c8c8c8 !important;
   }
 </style>
 <style>
diff --git a/models/Base_Cube/Single_Top_Cube.html b/models/Base_Cube/Single_Top_Cube.html
index af3944d..b3f5f57 100644
--- a/models/Base_Cube/Single_Top_Cube.html
+++ b/models/Base_Cube/Single_Top_Cube.html
@@ -20,7 +20,7 @@
   </style>
 <style>
   .nav-list a.active, .sub-nav-list a.active {
-    background-color: #ffffff !important;
+    background-color: #c8c8c8 !important;
   }
 </style>
 <style>
diff --git a/models/Double_Cube_Lens_Holder/LightSheet_Remake-Double_Cube_Lens_Holder_A.html b/models/Double_Cube_Lens_Holder/LightSheet_Remake-Double_Cube_Lens_Holder_A.html
index 485ce94..964f169 100644
--- a/models/Double_Cube_Lens_Holder/LightSheet_Remake-Double_Cube_Lens_Holder_A.html
+++ b/models/Double_Cube_Lens_Holder/LightSheet_Remake-Double_Cube_Lens_Holder_A.html
@@ -20,7 +20,7 @@
   </style>
 <style>
   .nav-list a.active, .sub-nav-list a.active {
-    background-color: #ffffff !important;
+    background-color: #c8c8c8 !important;
   }
 </style>
 <style>
diff --git a/models/Double_Cube_Lens_Holder/LightSheet_Remake-Double_Cube_Lens_Holder_B.html b/models/Double_Cube_Lens_Holder/LightSheet_Remake-Double_Cube_Lens_Holder_B.html
index 7951374..3685ad8 100644
--- a/models/Double_Cube_Lens_Holder/LightSheet_Remake-Double_Cube_Lens_Holder_B.html
+++ b/models/Double_Cube_Lens_Holder/LightSheet_Remake-Double_Cube_Lens_Holder_B.html
@@ -20,7 +20,7 @@
   </style>
 <style>
   .nav-list a.active, .sub-nav-list a.active {
-    background-color: #ffffff !important;
+    background-color: #c8c8c8 !important;
   }
 </style>
 <style>
diff --git a/models/Filter_Holder/Filter-Slide-25-mm.html b/models/Filter_Holder/Filter-Slide-25-mm.html
index 83a645d..d1a68df 100644
--- a/models/Filter_Holder/Filter-Slide-25-mm.html
+++ b/models/Filter_Holder/Filter-Slide-25-mm.html
@@ -20,7 +20,7 @@
   </style>
 <style>
   .nav-list a.active, .sub-nav-list a.active {
-    background-color: #ffffff !important;
+    background-color: #c8c8c8 !important;
   }
 </style>
 <style>
diff --git a/models/Filter_Holder/Holder-Filter-Slide-25-mm.html b/models/Filter_Holder/Holder-Filter-Slide-25-mm.html
index e72f530..7459e21 100644
--- a/models/Filter_Holder/Holder-Filter-Slide-25-mm.html
+++ b/models/Filter_Holder/Holder-Filter-Slide-25-mm.html
@@ -20,7 +20,7 @@
   </style>
 <style>
   .nav-list a.active, .sub-nav-list a.active {
-    background-color: #ffffff !important;
+    background-color: #c8c8c8 !important;
   }
 </style>
 <style>
diff --git a/models/Flexure_cylindrical_lens_holder/Flexure_cylindrical_lens_holder-cyl-lens-holder-extra-tall.html b/models/Flexure_cylindrical_lens_holder/Flexure_cylindrical_lens_holder-cyl-lens-holder-extra-tall.html
index bd22754..c72185c 100644
--- a/models/Flexure_cylindrical_lens_holder/Flexure_cylindrical_lens_holder-cyl-lens-holder-extra-tall.html
+++ b/models/Flexure_cylindrical_lens_holder/Flexure_cylindrical_lens_holder-cyl-lens-holder-extra-tall.html
@@ -20,7 +20,7 @@
   </style>
 <style>
   .nav-list a.active, .sub-nav-list a.active {
-    background-color: #ffffff !important;
+    background-color: #c8c8c8 !important;
   }
 </style>
 <style>
diff --git a/models/Flexure_cylindrical_lens_holder/Flexure_cylindrical_lens_holder-cyl-lens-holder-flex.html b/models/Flexure_cylindrical_lens_holder/Flexure_cylindrical_lens_holder-cyl-lens-holder-flex.html
index 2ae8da2..262fe36 100644
--- a/models/Flexure_cylindrical_lens_holder/Flexure_cylindrical_lens_holder-cyl-lens-holder-flex.html
+++ b/models/Flexure_cylindrical_lens_holder/Flexure_cylindrical_lens_holder-cyl-lens-holder-flex.html
@@ -20,7 +20,7 @@
   </style>
 <style>
   .nav-list a.active, .sub-nav-list a.active {
-    background-color: #ffffff !important;
+    background-color: #c8c8c8 !important;
   }
 </style>
 <style>
diff --git a/models/Flexure_cylindrical_lens_holder/Flexure_cylindrical_lens_holder-cyl-lens-holder-lid.html b/models/Flexure_cylindrical_lens_holder/Flexure_cylindrical_lens_holder-cyl-lens-holder-lid.html
index 5cccc7a..b47294f 100644
--- a/models/Flexure_cylindrical_lens_holder/Flexure_cylindrical_lens_holder-cyl-lens-holder-lid.html
+++ b/models/Flexure_cylindrical_lens_holder/Flexure_cylindrical_lens_holder-cyl-lens-holder-lid.html
@@ -20,7 +20,7 @@
   </style>
 <style>
   .nav-list a.active, .sub-nav-list a.active {
-    background-color: #ffffff !important;
+    background-color: #c8c8c8 !important;
   }
 </style>
 <style>
diff --git a/models/Kinematic_Mirrors/Diagonal-Kinematic-Mount-LIBREhub.html b/models/Kinematic_Mirrors/Diagonal-Kinematic-Mount-LIBREhub.html
index 23e6ab2..4973173 100644
--- a/models/Kinematic_Mirrors/Diagonal-Kinematic-Mount-LIBREhub.html
+++ b/models/Kinematic_Mirrors/Diagonal-Kinematic-Mount-LIBREhub.html
@@ -20,7 +20,7 @@
   </style>
 <style>
   .nav-list a.active, .sub-nav-list a.active {
-    background-color: #ffffff !important;
+    background-color: #c8c8c8 !important;
   }
 </style>
 <style>
diff --git a/models/Kinematic_Mirrors/Diagonal-Mirror-Surface-LIBREhub.html b/models/Kinematic_Mirrors/Diagonal-Mirror-Surface-LIBREhub.html
index 657be3e..d35174a 100644
--- a/models/Kinematic_Mirrors/Diagonal-Mirror-Surface-LIBREhub.html
+++ b/models/Kinematic_Mirrors/Diagonal-Mirror-Surface-LIBREhub.html
@@ -20,7 +20,7 @@
   </style>
 <style>
   .nav-list a.active, .sub-nav-list a.active {
-    background-color: #ffffff !important;
+    background-color: #c8c8c8 !important;
   }
 </style>
 <style>
diff --git a/models/Kinematic_Mirrors/Knob.html b/models/Kinematic_Mirrors/Knob.html
index ba5a637..6f0739f 100644
--- a/models/Kinematic_Mirrors/Knob.html
+++ b/models/Kinematic_Mirrors/Knob.html
@@ -20,7 +20,7 @@
   </style>
 <style>
   .nav-list a.active, .sub-nav-list a.active {
-    background-color: #ffffff !important;
+    background-color: #c8c8c8 !important;
   }
 </style>
 <style>
diff --git a/models/Kinematic_Mirrors/Side-Kinematic-Mount-LIBREhub.html b/models/Kinematic_Mirrors/Side-Kinematic-Mount-LIBREhub.html
index 0113efa..1ca2f3c 100644
--- a/models/Kinematic_Mirrors/Side-Kinematic-Mount-LIBREhub.html
+++ b/models/Kinematic_Mirrors/Side-Kinematic-Mount-LIBREhub.html
@@ -20,7 +20,7 @@
   </style>
 <style>
   .nav-list a.active, .sub-nav-list a.active {
-    background-color: #ffffff !important;
+    background-color: #c8c8c8 !important;
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 </style>
 <style>
diff --git a/models/Kinematic_Mirrors/Side-Mirror-Surface-LIBREhub.html b/models/Kinematic_Mirrors/Side-Mirror-Surface-LIBREhub.html
index 3177a91..7eb9f25 100644
--- a/models/Kinematic_Mirrors/Side-Mirror-Surface-LIBREhub.html
+++ b/models/Kinematic_Mirrors/Side-Mirror-Surface-LIBREhub.html
@@ -20,7 +20,7 @@
   </style>
 <style>
   .nav-list a.active, .sub-nav-list a.active {
-    background-color: #ffffff !important;
+    background-color: #c8c8c8 !important;
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 </style>
 <style>
diff --git a/models/Power-Lense-XY-aligner/Power-Lens-XY-aligner-A-Adapter.html b/models/Power-Lense-XY-aligner/Power-Lens-XY-aligner-A-Adapter.html
index 5bce252..46be1bf 100644
--- a/models/Power-Lense-XY-aligner/Power-Lens-XY-aligner-A-Adapter.html
+++ b/models/Power-Lense-XY-aligner/Power-Lens-XY-aligner-A-Adapter.html
@@ -20,7 +20,7 @@
   </style>
 <style>
   .nav-list a.active, .sub-nav-list a.active {
-    background-color: #ffffff !important;
+    background-color: #c8c8c8 !important;
   }
 </style>
 <style>
diff --git a/models/Power-Lense-XY-aligner/Power-Lens-XY-aligner-base.html b/models/Power-Lense-XY-aligner/Power-Lens-XY-aligner-base.html
index bd17e85..b303815 100644
--- a/models/Power-Lense-XY-aligner/Power-Lens-XY-aligner-base.html
+++ b/models/Power-Lense-XY-aligner/Power-Lens-XY-aligner-base.html
@@ -20,7 +20,7 @@
   </style>
 <style>
   .nav-list a.active, .sub-nav-list a.active {
-    background-color: #ffffff !important;
+    background-color: #c8c8c8 !important;
   }
 </style>
 <style>
diff --git a/models/Stepper_Motor_Container/LightSheet_Remake-Inner_Motor_Holder.html b/models/Stepper_Motor_Container/LightSheet_Remake-Inner_Motor_Holder.html
index a9e9470..7dc81b1 100644
--- a/models/Stepper_Motor_Container/LightSheet_Remake-Inner_Motor_Holder.html
+++ b/models/Stepper_Motor_Container/LightSheet_Remake-Inner_Motor_Holder.html
@@ -20,7 +20,7 @@
   </style>
 <style>
   .nav-list a.active, .sub-nav-list a.active {
-    background-color: #ffffff !important;
+    background-color: #c8c8c8 !important;
   }
 </style>
 <style>
diff --git a/models/Stepper_Motor_Container/LightSheet_Remake-New_Axis_Cube.html b/models/Stepper_Motor_Container/LightSheet_Remake-New_Axis_Cube.html
index 7bab6bf..086e513 100644
--- a/models/Stepper_Motor_Container/LightSheet_Remake-New_Axis_Cube.html
+++ b/models/Stepper_Motor_Container/LightSheet_Remake-New_Axis_Cube.html
@@ -20,7 +20,7 @@
   </style>
 <style>
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-    background-color: #ffffff !important;
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index 860b5b7..322d3f1 100644
--- a/models/Stepper_Motor_Container/LightSheet_Remake-New_Axis_Cube_Top.html
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index 912274c..3446fd7 100644
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index 4bc4bf5..d800d6e 100644
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diff --git a/models/leg_test.html b/models/leg_test.html
index 768538c..8611340 100644
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index 47928d5..66c6fbb 100644
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index 884e8ff..56244b2 100644
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index 24ede9a..3d8680a 100644
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index 679ce2e..46ce64e 100644
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index 20522a5..a1010e0 100644
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index 190b50d..58846e8 100644
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index 17ca7e8..a75ae51 100644
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index 8517eef..a43343e 100644
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index e36d7a9..59c34ac 100644
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   </style>
 <style>
   .nav-list a.active, .sub-nav-list a.active {
-    background-color: #ffffff !important;
+    background-color: #c8c8c8 !important;
   }
 </style>
 <style>
diff --git a/parts/tools/tweezers.html b/parts/tools/tweezers.html
index cae59e2..a3ffdca 100644
--- a/parts/tools/tweezers.html
+++ b/parts/tools/tweezers.html
@@ -19,7 +19,7 @@
   </style>
 <style>
   .nav-list a.active, .sub-nav-list a.active {
-    background-color: #ffffff !important;
+    background-color: #c8c8c8 !important;
   }
 </style>
 <style>
diff --git a/parts/tools/utility-knife.html b/parts/tools/utility-knife.html
index e305ab2..8c5ac4b 100644
--- a/parts/tools/utility-knife.html
+++ b/parts/tools/utility-knife.html
@@ -19,7 +19,7 @@
   </style>
 <style>
   .nav-list a.active, .sub-nav-list a.active {
-    background-color: #ffffff !important;
+    background-color: #c8c8c8 !important;
   }
 </style>
 <style>
diff --git a/printing.html b/printing.html
index 6c58034..cfd0086 100644
--- a/printing.html
+++ b/printing.html
@@ -19,7 +19,7 @@
   </style>
 <style>
   .nav-list a.active, .sub-nav-list a.active {
-    background-color: #ffffff !important;
+    background-color: #c8c8c8 !important;
   }
 </style>
 <style>
diff --git a/widget.html b/widget.html
index 2684b6d..10d42a8 100644
--- a/widget.html
+++ b/widget.html
@@ -19,7 +19,7 @@
   </style>
 <style>
   .nav-list a.active, .sub-nav-list a.active {
-    background-color: #ffffff !important;
+    background-color: #c8c8c8 !important;
   }
 </style>
 <style>