diff --git a/web/App_Themes/dark/input.css b/web/App_Themes/dark/input.css
new file mode 100644
index 00000000..b60043db
--- /dev/null
+++ b/web/App_Themes/dark/input.css
@@ -0,0 +1,19 @@
+
+input, textarea, checkbox { 
+    color: yellow;
+	background-color: black;  
+	font-size: larger;
+	border: solid 1px rgb(128,128,128);
+	animation-name: flash;
+    animation-duration: 1s;
+    animation-iteration-count: 1;
+   }
+
+input:hover, textarea:hover {
+    color: black;
+	 background-color: rgba(0,0,0,.8); 
+}
+
+.input-validation-error { border: solid 1px red; }
+.field-validation-error { color: red; }
+
diff --git a/web/App_Themes/dark/style.css b/web/App_Themes/dark/style.css
index 0f77001d..c1cb2151 100644
--- a/web/App_Themes/dark/style.css
+++ b/web/App_Themes/dark/style.css
@@ -1,5 +1,6 @@
 @import url(https://fonts.googleapis.com/css?family=Open+Sans:400,600,700);
 @import url(/App_Themes/dark/links.css);
+@import url(/App_Themes/dark/input.css);
 
 .skillname { 
 	background-color: rgba(16,16,64,0.8);
diff --git a/web/App_Themes/itclear/style.css b/web/App_Themes/itclear/style.css
new file mode 100644
index 00000000..b7067fbb
--- /dev/null
+++ b/web/App_Themes/itclear/style.css
@@ -0,0 +1,204 @@
+@import url(http://fonts.googleapis.com/css?family=Josefin+Sans&subset=latin,latin-ext);
+@import url(/App_Themes/clear/links.css);
+@import url(/App_Themes/clear/input.css);
+body {
+	background-color: white;
+	color: black;
+	font-family: 'Josefin Sans', sans-serif;
+	background: url("/App_Themes/images/p8-av4.jpg") 0 0 repeat fixed ;
+}
+.tagname {   }
+
+.tagname:hover { background-color: red; }
+
+/* Start by setting display:none to make this hidden.
+   Then we position it in relation to the viewport window
+   with position:fixed. Width, height, top and left speak
+   for themselves. Background we set to 80% white with
+   our animation centered, and no-repeating */
+.modal {
+    background: rgba( 255, 255, 255, .8 ) 
+                url('/App_Themes/images/FhHRx.gif') 
+                50% 50% 
+                no-repeat;
+}
+
+
+
+header { float: left; }
+
+h1 { display: inline-block; }
+
+nav {
+
+}
+nav li { display: inline-block; }
+
+
+
+main {
+clear:both;
+background-color: rgba(256,256,256,.5);
+	}
+
+footer {
+	background: url("/App_Themes/images/splash-image-2.jpg") 0 0 repeat fixed ;
+}
+
+legend, .skillname {
+	background-color: rgba(240,240,240,.8);
+  }
+#copyr { }
+
+#gspacer { 
+	background-color: rgba(209,209,209,.8);  }
+
+fieldset, .performer {
+	background-color: rgba(216,216,216,0.8);
+} 
+
+ h1 {
+    background-color: rgba(256,256,256,.2); 
+    padding: 1em;
+    color:white;
+    transition: color 1s;
+    } 
+
+.postpreview {
+	background-color: rgba(233,233,233,0.8);
+	animation-name: slideInDown;
+    animation-duration: 1s;
+    animation-iteration-count: 1;
+}
+
+.postpreview > div {
+    max-height: 0;
+    overflow: hidden;
+    transition: max-height 2s;
+    }
+
+.postpreview:hover > div {
+    overflow: auto;
+	max-height: 15em;
+	background-color: rgba(233,233,233,0.8);
+}
+.post { 
+	background-color: rgba(256,256,256,0.8);
+	}
+.hiddenpost { background-color: rgba(160,160,160,0.5); }
+
+
+.panel,.bigpanel, aside {
+	background-color: rgba(200,200,200,.8); 
+}
+
+.usertitleref {
+   background-color:rgba(256,256,212,0.6);
+}
+.editable {
+	border: dashed rgb(200,200,256) 2px; 
+	background-color: rgba(256,256,256,.8);
+}
+
+.notification {
+	background-color: rgba(264,264,128,0.5);
+	border: solid green 1px;
+	}
+.dirty { 
+	background-color: rgba(256,228,128,0.5);
+}
+.error, #error {
+	color: #f88;
+	background-color: rgba(256,0,0,.5);
+}
+.validation-summary-errors{
+	color: #f88;
+	background-color: rgba(256,256,139,0.5);
+}
+
+
+ul.preview li:nth-child(n) {
+	display:none;
+}
+
+.validation-summary-errors{
+	color: #f88;
+}
+
+a:active { 
+	background-color:rgba(184,180,132,0.9);
+}
+
+.code {
+	background-color: rgba(230,230,230,0.5);
+}
+
+
+
+@media all and (max-width: 640px) {
+
+
+
+	#logo { 
+	}
+
+	header {
+	}
+	nav {
+	}
+	main { 
+		
+	} 
+	footer { 
+		
+	} 
+}
+
+@media all and (max-width: 350px) {
+
+	#logo { 
+	}
+	header {
+	}
+
+	nav {
+	}
+	main { 
+		
+	} 
+	footer { 
+		
+	} 
+}
+
+
+.input-validation-error { border: solid 1px red; background-color: rgba(128,0,0,0.5);
+    animation-name: hotzone;
+    animation-duration: 4s;
+    animation-iteration-count: infinite;
+ }
+
+.field-validation-error { color: rgb(256,200,200); background-color: rgba(128,0,0,0.5);
+    animation-name: hotzone;
+    animation-duration: 4s;
+    animation-iteration-count: infinite;
+ }
+
+input[type='submit'].clickme { 
+    animation-name: hotzone;
+    animation-duration: 4s;
+    animation-iteration-count: infinite;
+    }
+
+
+@keyframes hotzone {
+    from {
+    background-color: rgba(230,230,230,.8);
+    color: black;
+	}
+    50%  {background-color: rgba(256,150,150,.5);}
+    to {
+    background-color: rgba(230,230,230,.8);
+    color: black;
+    }
+}
diff --git a/web/App_Themes/itdark/style.css b/web/App_Themes/itdark/style.css
new file mode 100644
index 00000000..56a3a629
--- /dev/null
+++ b/web/App_Themes/itdark/style.css
@@ -0,0 +1,204 @@
+@import url(http://fonts.googleapis.com/css?family=Josefin+Sans&subset=latin,latin-ext);
+@import url(/App_Themes/dark/links.css);
+@import url(/App_Themes/dark/input.css);
+body {
+	background-color: white;
+	color: black;
+	font-family: 'Josefin Sans', sans-serif;
+	background: url("/App_Themes/images/p8-av4.jpg") 0 0 repeat fixed ;
+}
+.tagname {   }
+
+.tagname:hover { background-color: red; }
+
+/* Start by setting display:none to make this hidden.
+   Then we position it in relation to the viewport window
+   with position:fixed. Width, height, top and left speak
+   for themselves. Background we set to 80% white with
+   our animation centered, and no-repeating */
+.modal {
+    background: rgba( 255, 255, 255, .8 ) 
+                url('/App_Themes/images/FhHRx.gif') 
+                50% 50% 
+                no-repeat;
+}
+
+
+
+header { float: left; }
+
+h1 { display: inline-block; }
+
+nav {
+
+}
+nav li { display: inline-block; }
+
+
+
+main {
+clear:both;
+background-color: rgba(256,256,256,.5);
+	}
+
+footer {
+	background: url("/App_Themes/images/splash-image-2.jpg") 0 0 repeat fixed ;
+}
+
+legend, .skillname {
+	background-color: rgba(240,240,240,.8);
+  }
+#copyr { }
+
+#gspacer { 
+	background-color: rgba(209,209,209,.8);  }
+
+fieldset, .performer {
+	background-color: rgba(216,216,216,0.8);
+} 
+
+ h1 {
+    background-color: rgba(256,256,256,.2); 
+    padding: 1em;
+    color:white;
+    transition: color 1s;
+    } 
+
+.postpreview {
+	background-color: rgba(233,233,233,0.8);
+	animation-name: slideInDown;
+    animation-duration: 1s;
+    animation-iteration-count: 1;
+}
+
+.postpreview > div {
+    max-height: 0;
+    overflow: hidden;
+    transition: max-height 2s;
+    }
+
+.postpreview:hover > div {
+    overflow: auto;
+	max-height: 15em;
+	background-color: rgba(233,233,233,0.8);
+}
+.post { 
+	background-color: rgba(256,256,256,0.8);
+	}
+.hiddenpost { background-color: rgba(160,160,160,0.5); }
+
+
+.panel,.bigpanel, aside {
+	background-color: rgba(200,200,200,.8); 
+}
+
+.usertitleref {
+   background-color:rgba(256,256,212,0.6);
+}
+.editable {
+	border: dashed rgb(200,200,256) 2px; 
+	background-color: rgba(256,256,256,.8);
+}
+
+.notification {
+	background-color: rgba(264,264,128,0.5);
+	border: solid green 1px;
+	}
+.dirty { 
+	background-color: rgba(256,228,128,0.5);
+}
+.error, #error {
+	color: #f88;
+	background-color: rgba(256,0,0,.5);
+}
+.validation-summary-errors{
+	color: #f88;
+	background-color: rgba(256,256,139,0.5);
+}
+
+
+ul.preview li:nth-child(n) {
+	display:none;
+}
+
+.validation-summary-errors{
+	color: #f88;
+}
+
+a:active { 
+	background-color:rgba(184,180,132,0.9);
+}
+
+.code {
+	background-color: rgba(230,230,230,0.5);
+}
+
+
+
+@media all and (max-width: 640px) {
+
+
+
+	#logo { 
+	}
+
+	header {
+	}
+	nav {
+	}
+	main { 
+		
+	} 
+	footer { 
+		
+	} 
+}
+
+@media all and (max-width: 350px) {
+
+	#logo { 
+	}
+	header {
+	}
+
+	nav {
+	}
+	main { 
+		
+	} 
+	footer { 
+		
+	} 
+}
+
+
+.input-validation-error { border: solid 1px red; background-color: rgba(128,0,0,0.5);
+    animation-name: hotzone;
+    animation-duration: 4s;
+    animation-iteration-count: infinite;
+ }
+
+.field-validation-error { color: rgb(256,200,200); background-color: rgba(128,0,0,0.5);
+    animation-name: hotzone;
+    animation-duration: 4s;
+    animation-iteration-count: infinite;
+ }
+
+input[type='submit'].clickme { 
+    animation-name: hotzone;
+    animation-duration: 4s;
+    animation-iteration-count: infinite;
+    }
+
+
+@keyframes hotzone {
+    from {
+    background-color: rgba(230,230,230,.8);
+    color: black;
+	}
+    50%  {background-color: rgba(256,150,150,.5);}
+    to {
+    background-color: rgba(230,230,230,.8);
+    color: black;
+    }
+}
diff --git a/web/ChangeLog b/web/ChangeLog
index 9de96243..d5ce7d65 100644
--- a/web/ChangeLog
+++ b/web/ChangeLog
@@ -1,3 +1,27 @@
+2015-12-16  Paul Schneider  <paul@pschneider.fr>
+
+	* input.css:
+	* style.css: une feuille pour les champs de formulaire thème
+	sombre
+
+	* style.css: une feuille pour un nouveau thème clair "IT" 
+
+	* style.css: une feuille pour un nouveau thème sombre "IT" 
+
+	* AccountController.cs: renseigne le combobox des thèmes
+	disponibles
+
+	* YavscHelpers.cs: Prendre la liste des thème dans un
+	paramètre de configuration
+
+	* Profile.aspx: Selectionner le thème avec un combo à partir
+	de la page du profile
+
+	* Web.config: le thème par défaut devient "clear",
+	le paramètre "Themes" contient la liste des thèmes autorisés.
+
+	* Yavsc.csproj: référencer les nouveaux thèmes
+
 2015-12-15  Paul Schneider  <paul@pschneider.fr>
 
 	* input.css: refabrication des feuilles de style : la feuille
diff --git a/web/Controllers/AccountController.cs b/web/Controllers/AccountController.cs
index 20beca03..8a130c59 100644
--- a/web/Controllers/AccountController.cs
+++ b/web/Controllers/AccountController.cs
@@ -256,9 +256,15 @@ namespace Yavsc.Controllers
 			ProfileEdition model = new ProfileEdition (ProfileBase.Create (id));
 			model.RememberMe = FormsAuthentication.GetAuthCookie (id, true) == null;
 			SetMEACodeViewData (model);
+			SetUIThemeViewData (model);
 			return View (model);
 		}
-
+		private void SetUIThemeViewData(Profile model) {
+			ViewData ["UITheme"] = YavscHelpers.AvailableThemes.Select (
+				x => new SelectListItem () { Selected = 
+					model.UITheme == x, Text = x, Value = x }).ToArray();
+			
+		}
 		private void SetMEACodeViewData(Profile model) {
 			var activities = WorkFlowManager.FindActivity ("%", false);
 			var items = new List<SelectListItem> ();
@@ -360,6 +366,7 @@ namespace Yavsc.Controllers
 				YavscHelpers.Notify(ViewData, "Profile enregistré"+((editsTheUserName)?", nom public inclu.":""));
 			}
 			SetMEACodeViewData (model);
+			SetUIThemeViewData (model);
 			return View (model);
 		}
 		/// <summary>
diff --git a/web/Helpers/YavscHelpers.cs b/web/Helpers/YavscHelpers.cs
index 27a4c3c1..2fc3c620 100644
--- a/web/Helpers/YavscHelpers.cs
+++ b/web/Helpers/YavscHelpers.cs
@@ -355,9 +355,9 @@ namespace Yavsc.Helpers
 		/// <summary>
 		/// The available themes.
 		/// </summary>
-		public static string[] AvailableThemes = {
-			"clear", "dark", "blue", "green"
-		};
+		public static string[] AvailableThemes = 
+			ConfigurationManager.AppSettings["Themes"]
+				.Split(',');
 
 		/// <summary>
 		/// Themes the CSS links.
@@ -370,8 +370,11 @@ namespace Yavsc.Helpers
 			this System.Web.Mvc.HtmlHelper html, string theme, string baseName) {
 
 			if (!AvailableThemes.Contains (theme))
-				throw new ArgumentException ("The given theme is not configured: " +
-				theme);
+			if (AvailableThemes.Length > 0)
+				theme = AvailableThemes [0];
+			else
+				return null;
+			
 			if (string.IsNullOrWhiteSpace(baseName))
 				throw new ArgumentException ("Specify a base name");
 
diff --git a/web/Views/Account/Profile.aspx b/web/Views/Account/Profile.aspx
index b809c0e5..6ed1ba8d 100644
--- a/web/Views/Account/Profile.aspx
+++ b/web/Views/Account/Profile.aspx
@@ -170,7 +170,7 @@ Avatar :
 </legend>
 <span>
 <%= Html.LabelFor(model => model.UITheme) %> :
-<%= Html.TextBox("UITheme") %>
+<%= Html.DropDownList("UITheme") %>
 <%= Html.ValidationMessage("UITheme", "*") %></span>
 
 </fieldset>
diff --git a/web/Web.config b/web/Web.config
index 222208d6..fa0caf6f 100644
--- a/web/Web.config
+++ b/web/Web.config
@@ -150,7 +150,7 @@ http://msdn2.microsoft.com/en-us/library/b5ysx397.aspx
         <add name="gcalid" />
         <add name="gregid" allowAnonymous="true" />
         <add name="allowcookies" type="System.Boolean" allowAnonymous="true" defaultValue="false" />
-        <add name="UITheme" allowAnonymous="true" defaultValue="dark" />
+        <add name="UITheme" allowAnonymous="true" defaultValue="clear" />
         <add name="Rate" type="System.Int32" defaultValue="100" />
       </properties>
     </profile>
@@ -244,7 +244,7 @@ http://msdn2.microsoft.com/en-us/library/b5ysx397.aspx
       <!--  (miliseconds) = 30s -->
       <add name="requestRetries" value="1" />
       <!--  -->
-      <add name="clientId" value="[YOUR_PAYPAL_ID]" />
+      <add name="clientId" value="A9S6jrem3H0gdj8tQ2q1ahSCU38tAJRyiro7eED13h3Syn6C9ZSKSRkl" />
       <!--  -->
       <add name="clientSecret" value="[YOUR_PAYPAL_SECRET]" />
       <!--  -->
@@ -273,6 +273,7 @@ http://msdn2.microsoft.com/en-us/library/b5ysx397.aspx
     <add key="AdminEMail" value="[YOUR_ADMIN_EMAIL]" />
     <add key="OwnerEMail" value="[YOUR_OWNER_EMAIL]" />
     <add key="Name" value="[YOUR_SITE_NAME]" />
+    <add key="Themes" value="clear,dark,itdark,itclear,blue,green,base" />
     <add key="DefaultAvatar" value="/App_Themes/images/noavatar.png;image/png" />
     <add key="RegistrationMessage" value="/RegistrationMail.txt" />
     <!-- <add key="ClientValidationEnabled" value="true" />
diff --git a/web/Yavsc.csproj b/web/Yavsc.csproj
index 0d500737..fa7942a4 100644
--- a/web/Yavsc.csproj
+++ b/web/Yavsc.csproj
@@ -176,6 +176,8 @@
     <Folder Include="xmldoc\" />
     <Folder Include="App_Code\" />
     <Folder Include="App_Themes\base\" />
+    <Folder Include="App_Themes\itclear\" />
+    <Folder Include="App_Themes\itdark\" />
   </ItemGroup>
   <ItemGroup>
     <Compile Include="Controllers\HomeController.cs" />
@@ -767,6 +769,9 @@
     <Content Include="Views\Home\Test.aspx" />
     <Content Include="App_Themes\clear\input.css" />
     <Content Include="Views\FrontOffice\Estimate.aspx" />
+    <Content Include="App_Themes\itclear\style.css" />
+    <Content Include="App_Themes\itdark\style.css" />
+    <Content Include="App_Themes\dark\input.css" />
   </ItemGroup>
   <Import Project="$(MSBuildBinPath)\Microsoft.CSharp.targets" />
   <Import Project="$(MSBuildExtensionsPath)\Microsoft\VisualStudio\v10.0\WebApplications\Microsoft.WebApplication.targets" />