diff --git a/searx/static/themes/oscar/css/logicodev-dark.css b/searx/static/themes/oscar/css/logicodev-dark.css
index dadf6f140..c104dc061 100644
--- a/searx/static/themes/oscar/css/logicodev-dark.css
+++ b/searx/static/themes/oscar/css/logicodev-dark.css
@@ -176,7 +176,7 @@ input[type=checkbox]:not(:checked) + .label_hide_if_checked + .label_hide_if_not
   float: right;
 }
 .external-link {
-  color: #069025;
+  color: #068922;
   font-size: 12px;
   margin-bottom: 15px;
 }
@@ -266,7 +266,7 @@ input[type=checkbox]:not(:checked) + .label_hide_if_checked + .label_hide_if_not
   padding-bottom: 60px;
 }
 .label-default {
-  color: #a4a4a4;
+  color: #666666;
   background: transparent;
 }
 .result .text-muted small {
@@ -300,7 +300,7 @@ input[type=checkbox]:not(:checked) + .label_hide_if_checked + .label_hide_if_not
   font-style: italic;
 }
 .infobox .btn {
-  background-color: #2ecc71;
+  background-color: #007ab8;
   border: none;
 }
 .infobox .btn a {
@@ -364,13 +364,13 @@ input[type=checkbox]:not(:checked) + .label_hide_if_checked + .label_hide_if_not
 #q {
   box-shadow: none;
   border-right: none;
-  border-color: #a4a4a4;
+  border-color: #888888;
 }
 #search_form .input-group-btn .btn {
-  border-color: #a4a4a4;
+  border-color: #888888;
 }
 #search_form .input-group-btn .btn:hover {
-  background-color: #2ecc71;
+  background-color: #068922;
   color: white;
 }
 .custom-select {
@@ -380,7 +380,7 @@ input[type=checkbox]:not(:checked) + .label_hide_if_checked + .label_hide_if_not
   font-size: 1.2rem;
   font-weight: normal;
   background-color: white;
-  border: #dddddd 1px solid;
+  border: #888888 1px solid;
   color: #666666;
   background: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAAPCAQAAACR313BAAAABGdBTUEAALGPC/xhBQAAACBjSFJN
 AAB6JgAAgIQAAPoAAACA6AAAdTAAAOpgAAA6mAAAF3CculE8AAAAAmJLR0QA/4ePzL8AAAAJcEhZ
@@ -405,6 +405,17 @@ Ny0yNFQxMToxNTowMCswMjowMP7RDgQAAAAZdEVYdFNvZnR3YXJlAHd3dy5pbmtzY2FwZS5vcmeb
   white-space: nowrap;
   /* added line */
 }
+.label-danger,
+.btn-danger {
+  background: #c9432f;
+}
+.label-success,
+.btn-success {
+  background: #068922;
+}
+select.form-control {
+  border-color: #888888 !important;
+}
 #advanced-search-container {
   display: none;
   text-align: left;
diff --git a/searx/static/themes/oscar/css/logicodev-dark.min.css b/searx/static/themes/oscar/css/logicodev-dark.min.css
index ccafea854..27a41cc84 100644
Binary files a/searx/static/themes/oscar/css/logicodev-dark.min.css and b/searx/static/themes/oscar/css/logicodev-dark.min.css differ
diff --git a/searx/static/themes/oscar/css/logicodev.css b/searx/static/themes/oscar/css/logicodev.css
index f082f273b..94b162857 100644
--- a/searx/static/themes/oscar/css/logicodev.css
+++ b/searx/static/themes/oscar/css/logicodev.css
@@ -149,7 +149,7 @@ input[type=checkbox]:not(:checked) + .label_hide_if_checked + .label_hide_if_not
   float: right;
 }
 .external-link {
-  color: #069025;
+  color: #068922;
   font-size: 12px;
   margin-bottom: 15px;
 }
@@ -239,7 +239,7 @@ input[type=checkbox]:not(:checked) + .label_hide_if_checked + .label_hide_if_not
   padding-bottom: 60px;
 }
 .label-default {
-  color: #a4a4a4;
+  color: #666666;
   background: transparent;
 }
 .result .text-muted small {
@@ -273,7 +273,7 @@ input[type=checkbox]:not(:checked) + .label_hide_if_checked + .label_hide_if_not
   font-style: italic;
 }
 .infobox .btn {
-  background-color: #2ecc71;
+  background-color: #007ab8;
   border: none;
 }
 .infobox .btn a {
@@ -337,13 +337,13 @@ input[type=checkbox]:not(:checked) + .label_hide_if_checked + .label_hide_if_not
 #q {
   box-shadow: none;
   border-right: none;
-  border-color: #a4a4a4;
+  border-color: #888888;
 }
 #search_form .input-group-btn .btn {
-  border-color: #a4a4a4;
+  border-color: #888888;
 }
 #search_form .input-group-btn .btn:hover {
-  background-color: #2ecc71;
+  background-color: #068922;
   color: white;
 }
 .custom-select {
@@ -353,7 +353,7 @@ input[type=checkbox]:not(:checked) + .label_hide_if_checked + .label_hide_if_not
   font-size: 1.2rem;
   font-weight: normal;
   background-color: white;
-  border: #dddddd 1px solid;
+  border: #888888 1px solid;
   color: #666666;
   background: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAAPCAQAAACR313BAAAABGdBTUEAALGPC/xhBQAAACBjSFJN
 AAB6JgAAgIQAAPoAAACA6AAAdTAAAOpgAAA6mAAAF3CculE8AAAAAmJLR0QA/4ePzL8AAAAJcEhZ
@@ -378,6 +378,17 @@ Ny0yNFQxMToxNTowMCswMjowMP7RDgQAAAAZdEVYdFNvZnR3YXJlAHd3dy5pbmtzY2FwZS5vcmeb
   white-space: nowrap;
   /* added line */
 }
+.label-danger,
+.btn-danger {
+  background: #c9432f;
+}
+.label-success,
+.btn-success {
+  background: #068922;
+}
+select.form-control {
+  border-color: #888888 !important;
+}
 #advanced-search-container {
   display: none;
   text-align: left;
diff --git a/searx/static/themes/oscar/css/logicodev.min.css b/searx/static/themes/oscar/css/logicodev.min.css
index 37549eaa6..586bda7fb 100644
Binary files a/searx/static/themes/oscar/css/logicodev.min.css and b/searx/static/themes/oscar/css/logicodev.min.css differ
diff --git a/searx/static/themes/oscar/less/logicodev/infobox.less b/searx/static/themes/oscar/less/logicodev/infobox.less
index 954f4507a..86b8afb11 100644
--- a/searx/static/themes/oscar/less/logicodev/infobox.less
+++ b/searx/static/themes/oscar/less/logicodev/infobox.less
@@ -15,7 +15,7 @@
     }
 
     .btn{
-        background-color: @green;
+        background-color: @dark-blue;
         border: none;
 
         a{
diff --git a/searx/static/themes/oscar/less/logicodev/results.less b/searx/static/themes/oscar/less/logicodev/results.less
index c2279634e..9926d6e53 100644
--- a/searx/static/themes/oscar/less/logicodev/results.less
+++ b/searx/static/themes/oscar/less/logicodev/results.less
@@ -164,7 +164,7 @@
 }
 
 .label-default {
-    color: @gray;
+    color: @dark-gray;
     background: transparent;
 }
 
diff --git a/searx/static/themes/oscar/less/logicodev/search.less b/searx/static/themes/oscar/less/logicodev/search.less
index ff94bfefb..a0cbe4d7d 100644
--- a/searx/static/themes/oscar/less/logicodev/search.less
+++ b/searx/static/themes/oscar/less/logicodev/search.less
@@ -44,15 +44,15 @@
 #q{
     box-shadow: none;
     border-right: none;
-    border-color: @gray;
+    border-color: @semidark-gray;
 }
 
  #search_form .input-group-btn .btn{
-    border-color: @gray;
+    border-color: @semidark-gray;
  }
 
  #search_form .input-group-btn .btn:hover{
-     background-color: @green;
+     background-color: @dark-green;
      color: white;
  }
 
@@ -63,7 +63,7 @@
     font-size: 1.2rem;
     font-weight:normal;
     background-color: white;
-    border: @mild-gray 1px solid;
+    border: @semidark-gray 1px solid;
     color: @dark-gray;
     background: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAA8AAAAPCAQAAACR313BAAAABGdBTUEAALGPC/xhBQAAACBjSFJN
 AAB6JgAAgIQAAPoAAACA6AAAdTAAAOpgAAA6mAAAF3CculE8AAAAAmJLR0QA/4ePzL8AAAAJcEhZ
@@ -88,3 +88,12 @@ Ny0yNFQxMToxNTowMCswMjowMP7RDgQAAAAZdEVYdFNvZnR3YXJlAHd3dy5pbmtzY2FwZS5vcmeb
     clip: rect(1px, 1px, 1px, 1px);
     white-space: nowrap; /* added line */
 }
+.label-danger, .btn-danger {
+    background: @dark-red;
+}
+.label-success, .btn-success {
+    background: @dark-green;
+}
+select.form-control {
+    border-color: @semidark-gray !important;
+}
diff --git a/searx/static/themes/oscar/less/logicodev/variables.less b/searx/static/themes/oscar/less/logicodev/variables.less
index 5966ee66b..4ee8df8e7 100644
--- a/searx/static/themes/oscar/less/logicodev/variables.less
+++ b/searx/static/themes/oscar/less/logicodev/variables.less
@@ -2,12 +2,15 @@
 @gray: #A4A4A4;
 @dim-gray: #F6F9FA;
 @dark-gray: #666;
+@semidark-gray: #888;
 @middle-gray: #F5F5F5;
 @mild-gray: #DDD;
-@blue: #0088CC; 
+@dark-blue: #007AB8;
+@blue: #0088CC;
 @red: #F35E77;
 @violet: #684898;
-@dark-green: #069025;
+@dark-green: #068922;
 @green: #2ecc71;
-@light-green: #01D7D4; 
+@light-green: #01D7D4;
 @orange: #FFA92F;
+@dark-red: #c9432f;
diff --git a/searx/templates/oscar/preferences.html b/searx/templates/oscar/preferences.html
index d28589ae8..ab71b0683 100644
--- a/searx/templates/oscar/preferences.html
+++ b/searx/templates/oscar/preferences.html
@@ -264,18 +264,18 @@
                 </p>
                 <table class="table table-striped">
                     <tr>
-                        <th class="text-muted{% if rtl %} text-right{% endif %}">{{ _('Name') }}</th>
-                        <th class="text-muted{% if rtl %} text-right{% endif %}">{{ _('Keywords') }}</th>
-                        <th class="text-muted{% if rtl %} text-right{% endif %}">{{ _('Description') }}</th>
-                        <th class="text-muted{% if rtl %} text-right{% endif %}">{{ _('Examples') }}</th>
+                        <th{% if rtl %} class="text-right"{% endif %}>{{ _('Name') }}</th>
+                        <th{% if rtl %} class="text-right"{% endif %}>{{ _('Keywords') }}</th>
+                        <th{% if rtl %} class="text-right"{% endif %}>{{ _('Description') }}</th>
+                        <th{% if rtl %} class="text-right"{% endif %}>{{ _('Examples') }}</th>
                     </tr>
 
                     {% for answerer in answerers %}
                     <tr>
-                        <td class="text-muted">{{ answerer.info.name }}</td>
-                        <td class="text-muted">{{ answerer.keywords|join(', ') }}</td>
-                        <td class="text-muted">{{ answerer.info.description }}</td>
-                        <td class="text-muted">{{ answerer.info.examples|join(', ') }}</td>
+                        <td>{{ answerer.info.name }}</td>
+                        <td>{{ answerer.keywords|join(', ') }}</td>
+                        <td>{{ answerer.info.description }}</td>
+                        <td>{{ answerer.info.examples|join(', ') }}</td>
                     </tr>
                     {% endfor %}
                 </table>