diff --git a/paramecio2/modules/admin/admin/ausers.py b/paramecio2/modules/admin/admin/ausers.py
index 212e5ea..23274da 100644
--- a/paramecio2/modules/admin/admin/ausers.py
+++ b/paramecio2/modules/admin/admin/ausers.py
@@ -25,9 +25,7 @@ def ausers():
     
     user_admin.fields['last_login'].name_form=HiddenForm
     
-    user_admin.fields['dark_theme'].name_form=SelectForm
-    
-    user_admin.create_forms(['username', 'password', 'email', 'privileges', 'lang', 'dark_theme', 'disabled', 'double_auth', 'last_login'])
+    user_admin.create_forms(['username', 'password', 'email', 'privileges', 'lang', 'disabled', 'double_auth', 'last_login'])
     
     user_admin.forms['privileges'].arr_select={0: I18n.lang('admin', 'without_privileges', 'Without privileges'), 1: I18n.lang('admin', 'selected_privileges', 'Selected privileges'), 2: I18n.lang('admin', 'administrator', 'Administrator')}
     
@@ -37,8 +35,6 @@ def ausers():
     
     user_admin.fields['password'].protected=False
     
-    user_admin.forms['dark_theme'].arr_select={0: I18n.lang('admin', 'light_theme', 'Light theme'), 1: I18n.lang('admin', 'dark_theme', 'Dark theme')}
-    
     user_admin.check_user=False
     user_admin.check_email=False
     
@@ -50,7 +46,7 @@ def ausers():
     
     admin.list.search_fields=['username']
     
-    admin.arr_fields_edit=['username', 'password', 'repeat_password', 'email', 'lang', 'dark_theme', 'double_auth', 'disabled', 'last_login']
+    admin.arr_fields_edit=['username', 'password', 'repeat_password', 'email', 'lang', 'double_auth', 'disabled', 'last_login']
     
     form_admin=admin.show()
     
diff --git a/paramecio2/modules/admin/app.py b/paramecio2/modules/admin/app.py
index ff030aa..a4755f2 100644
--- a/paramecio2/modules/admin/app.py
+++ b/paramecio2/modules/admin/app.py
@@ -115,7 +115,6 @@ for app_load in config_admin:
 
 @admin_app.route('/admin/')
 def admin():
-    
     return t.load_template('home.phtml', title=I18n.lang('admin', 'admin', 'Admin'))
 
 """
@@ -252,11 +251,7 @@ def login():
                         
                         sendmail.send(config.portal_email, [arr_user['email']], I18n.lang('admin', 'code_for_complete_login', 'Code for complete login'), I18n.lang('admin', 'code_for_complete_login_explain', 'We send to you a code for activate your account using double authentication:')+"\n"+token_auth, content_type='plain', attachments=[])
                         
-                    if arr_user['dark_theme']:
-                        session['theme']='1'
-                    else:
-                        session['theme']='0'
-                        
+                    
                     arr_update['last_login']=now()
                     
                     if len(arr_update)>0:
@@ -399,17 +394,6 @@ def auth_check():
     
     return {'error': error, 'you_cannot_login': you_cannot_login}
 
-@admin_app.route('/admin/change_theme/')
-def change_theme():
-    
-    theme_selected=str(request.args.get('theme', '0'))
-    
-    session['theme']=theme_selected
-    
-    error=0
-    
-    return {'error': error}
-
 """
 @admin_app.route('/admin/recovery_password/')
 def recovery_password():
diff --git a/paramecio2/modules/admin/media/css/admin.css b/paramecio2/modules/admin/media/css/admin.css
index 8b65c61..8b610f4 100644
--- a/paramecio2/modules/admin/media/css/admin.css
+++ b/paramecio2/modules/admin/media/css/admin.css
@@ -1,11 +1,4 @@
 
-/** {
-  margin: 0;
-  padding: 0;
-  -webkit-box-sizing: border-box;
-          box-sizing: border-box;
-}*/
-
 body
 {
 
@@ -13,42 +6,23 @@ body
 	background-color:#f4f6f9;
     font-family: "Roboto", sans, sans-serif, serif;
     font-size: 16px;
-    /*-webkit-transition: all 0.5s ease-in-out;
-    transition: all 0.5s ease-in-out;
-    -webkit-transition-property: background-color, color;
-  transition-property: background-color, color;*/
     
 }
 
-body.dark {
-  background-color: #232834;
-  
-  color: #fbfbfb;
-      /*-webkit-transition: all 0.5s ease-in-out;
-    transition: all 0.5s ease-in-out;
-    -webkit-transition-property: background-color, color;
-  transition-property: background-color, color;*/
-    
-}
-
-a {
+a 
+{
 
 	color: #1c6280;
 
 }
 
-a:hover {
+a:hover
+{
 
 	color: #d54e21;
 
 }
 
-.dark a {
-
-    color: #5fa6c4;
-
-}
-
 #header
 {
 
@@ -65,14 +39,6 @@ a:hover {
 
 }
 
-.dark #header {
-
-    
-
-    background-color:#1e1412;
-
-}
-
 #title_phango
 {
 	font-size:28px;
@@ -133,20 +99,6 @@ h1 {
 
 }
 
-.dark h1 {
-
-    background-color:#000a22;
-    color: #fbfbfb;
-    border-color: #000;
-
-}
-
-.dark h2 {
-
-    color: #fbfbfb;
-
-}
-
 p {
 
     border: solid #cbcbcb;
@@ -190,16 +142,6 @@ p {
     box-sizing: border-box;
 /*    padding-bottom: 100px;*/
     overflow:hidden;
-    height:100%;
-    -webkit-box-shadow: 1px 1px 5px 0px rgba(0,0,0,0.75);
-    -moz-box-shadow: 1px 1px 5px 0px rgba(0,0,0,0.75);
-    box-shadow: 1px 1px 5px 0px rgba(0,0,0,0.75);
-}
-
-.dark #menu {
-
-
-
 }
 
 #menu a
@@ -315,23 +257,8 @@ p {
     border: solid #cbcbcb;
     border-width: 0px 0px 1px 0px;
     min-height: 90vh;
-    /*-webkit-transition: all 0.5s ease-in-out;
-    transition: all 0.5s ease-in-out;*/
-    
-    
 }
 
-.dark .content_admin {
-
-    background-color: #1e202a;
-    /*-webkit-transition: all 0.5s ease-in-out;
-    transition: all 0.5s ease-in-out;*/
-    border: solid #323232;
-    border-width: 0px 0px 1px 0px;
-
-}
-
-
 .content_admin i {
 
     margin-right: 10px;
@@ -344,10 +271,8 @@ p {
 	width:82%;
 	padding:0px 0px 0px 0px;
     box-sizing: border-box;
-    
 }
 
-
 .content
 {
 	padding:0px 10px 5px 10px;
@@ -395,13 +320,6 @@ p {
     
 }
 
-.dark .form {
-
-    background-color: #1e202a;
-    border-color: #323232;
-
-}
-
 .form textarea {
 
 	width:100%;
@@ -490,12 +408,6 @@ table {
 
 }
 
-.dark .table_list {
-
-    border: solid #323232 1px;
-
-}
-
 .title_list td, .fields_span_title {
 
     margin:0px;
@@ -511,13 +423,6 @@ table {
 
 }
 
-.dark .title_list td  {
-
-    background-color:#000a22;
-
-
-}
-
 .fields_span_title, div.options_td , div.fields_span_table_data {
 
     box-sizing: border-box;
@@ -544,13 +449,6 @@ table {
 
 }
 
-.dark .row_list td  {
-
-    background-color: #2d313b;
-    color: #fbfbfb;
-
-}
-
 div.fields_span_table_data {
 
     box-sizing: border-box;
@@ -574,13 +472,6 @@ div.fields_span_table_data {
 	
 }
 
-.dark .cont_text, .dark .cont {
-
-    background-color: #2d313b;
-    border-color: #343434;
-
-}
-
 .cont_top {
     
     border-width: 1px 1px 1px 1px;
@@ -627,12 +518,6 @@ div.fields_span_table_data {
 	
 }
 
-.dark .error {
-
-    color: #ff3232;
-
-}
-
 .hidden_form
 {
 	
@@ -692,11 +577,9 @@ a:hover.no_choose_flag
 #center_body input {
 
 	border: solid #bcbcbc;
-	border-width:2px;
+	border-width:1px;
 	border-radius:5px;
 	background: #eeeeee;
-    padding: 2px 4px;
-    font-size:16px;
 
 }
 
@@ -706,13 +589,6 @@ a:hover.no_choose_flag
 	
 }
 
-.dark #center_body input {
-
-    background-color: #2d313b;
-    color: #fbfbfb;
-
-}
-
 #center_body input[type="submit"], #center_body input[type="button"], #center_body input[type="button"].button_blue
 {
 	
@@ -735,12 +611,6 @@ a:hover.no_choose_flag
 
 }
 
-.dark #center_body input[type="button"] {
-
-    background:  #d08b2c;
-
-}
-
 #center_body input:hover[type="submit"], #center_body input[type="button"].button_blue
 {
 	
@@ -757,15 +627,6 @@ a:hover.no_choose_flag
 	
 }
 
-#center_body input:hover[type="button"].button_blue
-{
-	
-	background: #215181;
-    cursor: pointer;
-	
-}
-
-
 #center_body input[type="text"], #center_body input[type="password"]
 {
 
@@ -786,16 +647,6 @@ a:hover.no_choose_flag
 	border: solid #bcbcbc;
 	border-width:1px;
 	border-radius:5px;
-    padding: 2px 5px;
-    border: solid #cbcbcb 2px;
-    font-size: 16px;
-
-}
-
-.dark #center_body select {
-
-    background-color: #2d313b;
-    color: #fbfbfb;
 
 }
 
@@ -1118,14 +969,6 @@ h2.title_container {
 
 }
 
-.dark h2.title_container {
-
-    background-color: #2d313b;
-    border-color: #343434;
-    color: #fbfbfb;
-
-}
-
 .container_warning h2.title_container {
 
     background:#dc3545;
@@ -1158,144 +1001,6 @@ h2.title_container {
 
 }
 
-.dark .container_content {
-
-    background-color: #2d313b;
-    border-color: #343434;
-    color: #fbfbfb;
-
-}
-
-/* Switch for dark mode */
-
-/* switches css */
-
- /* The switch - the box around the slider */
-
-.switch {
-  position: relative;
-  display: inline-block;
-  width: 40px;
-  height: 16px;
-  
-}
-
-/* Hide default HTML checkbox */
-.switch input {display:none;}
-
-/* The slider */
-.slider {
-  position: absolute;
-  cursor: pointer;
-  top: 0;
-  left: 0;
-  right: 0;
-  bottom: 0;
-  background-color: #ccc;
-  -webkit-transition: .4s;
-  transition: .4s;
-  height: 16px;
-  width:38px;
-  box-sizing: border-box;
- -webkit-box-sizing:border-box;
- -moz-box-sizing: border-box;
-}
-
-/* before is the checkbox */
-
-.slider:before {
-  position: absolute;
-  content: "";
-  height: 22px;
-  width: 22px;
-  left: -1px;
-  top: -3px;
-  background-color: #fbfbfb;
-  -webkit-transition: .4s;
-  transition: .4s;
-}
-
-input:checked + .slider {
-  background-color: #447211;
-}
-
-input:focus + .slider {
-  box-shadow: 0 0 1px #447211;
-}
-
-input:checked + .slider:before {
-  -webkit-transform: translateX(21px);
-  -ms-transform: translateX(21px);
-  transform: translateX(21px);
-    background-color: #7ed321;
-}
-
-input:checked + .slider_grey {
-  background-color: #ccc;
-}
-
-input:focus + .slider_grey {
-  box-shadow: 0 0 1px #ccc;
-}
-
-input:checked + .slider_grey:before {
-  -webkit-transform: translateX(21px);
-  -ms-transform: translateX(21px);
-  transform: translateX(21px);
-    background-color: #fbfbfb;
-}
-
-
-/* Rounded sliders */
-.slider.round {
-  border-radius: 34px;
-}
-
-.slider.round:before {
-  border-radius: 50%;
-}
-
-.container_switch {
-
-    margin-top:6px;
-    display:inline-block;
-    float:right;
-
-}
-
-.switch-btn {
-
-    position:absolute;
-    /*border: solid #f00 1px;*/
-    right:4px;
-    top:8px;
-    z-index:9999;
-
-}
-
-.switch-slider {
-
-    text-align:center;
-    display: inline-block;
-
-}
-
-.switch-text {
-
-    display: inline-block;
-    font-size: 12px;
-    position:relative;
-    top: -4px;
-    left:-2px;
-    color: #000;
-
-}
-
-.dark .switch-text {
-
-    color: #fbfbfb;
-
-}
 
 /* Media queries */
 
diff --git a/paramecio2/modules/admin/models/admin.py b/paramecio2/modules/admin/models/admin.py
index 2cc93b3..9433fd7 100644
--- a/paramecio2/modules/admin/models/admin.py
+++ b/paramecio2/modules/admin/models/admin.py
@@ -94,8 +94,6 @@ class UserAdmin(UserModel):
         
         self.register(corefields.BooleanField('double_auth'))
         
-        self.register(corefields.BooleanField('dark_theme'))
-        
         #self.register(corefields.IntegerField('num_tries', 1))
         
         self.register(DateTimeField('last_login'))
diff --git a/paramecio2/modules/admin/templates/dashboard.phtml b/paramecio2/modules/admin/templates/dashboard.phtml
index cfc1d11..eb3b224 100644
--- a/paramecio2/modules/admin/templates/dashboard.phtml
+++ b/paramecio2/modules/admin/templates/dashboard.phtml
@@ -1,16 +1,3 @@
-<%
-
-from flask import session
-
-dark_checked=''
-dark_css=''
-
-if session.get('theme', '0')=='1':
-    dark_checked='checked'
-    dark_css='dark'
-
-
-%>
 <!DOCTYPE html>
 <html>
 <head>                                                                                          
@@ -33,7 +20,7 @@ ${load_js()|n}
 <%block name="extra_header">
 </%block>
 </head>
-<body class="${dark_css}">
+<body>
 <div id="layer_loading" style="display:none;"><div id="container_loading"><div class="lds-dual-ring"></div></div></div>
 <div id="languages_general">
 </div>
@@ -57,10 +44,8 @@ ${load_js()|n}
         %>
         <span id="title_phango">${portal_admin_name_set[0]}</span> <span id="title_framework">${portal_admin_name_set[1]}</span>
         </%block>
-        
     </div>
     <div class="content_admin">
-    
         <nav id="menu" class="nav-collapse">
             <ul>
                 <li class="menu_title"><%block name="applications"><i class="fa fa-gear" aria-hidden="true"></i>${lang('admin', 'applications', 'Applications')}</li></%block>
@@ -105,17 +90,6 @@ ${load_js()|n}
         </nav>
         <div class="contents">
             <h1>${title}</h1>
-            <div class="switch-btn">
-                <div class="switch-text">
-                    Dark Mode
-                </div>
-                <div class="switch-slider">
-                    <label class="switch">
-                        <input type="checkbox" name="theme" value="1" id="theme" ${dark_checked}/>
-                        <span class="slider round"></span>
-                    </label>
-                </div>
-            </div>
             <div class="content">
                 <%
                 from flask import get_flashed_messages
@@ -143,59 +117,6 @@ ${load_js()|n}
         trigger: 'click'
     });
     
-    const slider = document.querySelector('input[name="theme"]');
-
-    slider.addEventListener("change", function () {
-        
-        //Block button while send to ajax. 
-        
-        $(this).prop("disabled",true);
-        
-        var dark='';
-        
-        if (this.checked) {
-            document.body.classList.add("dark");
-            
-            dark='1';
-            
-        } else {
-            document.body.classList.remove("dark");
-            
-            dark='0';
-        }
-        
-        $.ajax({
-            url: "${url_for('admin_app.change_theme')}?theme="+dark,
-            type: 'GET',
-            data:  {},
-            success: function (data) {
-
-                if(!data.error) {
-
-                    console.log('Changed to dark in all pages');
-
-                }
-                else {
-
-                    console.log('Cannot set dark theme in all pages!');
-
-                }
-                
-                $(slider).prop("disabled",false);
-
-            },
-            error: function (data) {
-
-                alert('Error: '+data.status+' '+data.statusText);
-                
-                $(slider).prop("disabled", false);
-
-            },
-            dataType: 'json'
-        });
-
-    });
-    
 </script>
 <%block name="jscript_block">
 </%block>