diff --git a/icon/chat64x64.gif b/icon/chat64x64.gif
new file mode 100644
index 000000000..f78d876ff
Binary files /dev/null and b/icon/chat64x64.gif differ
diff --git a/icon/dot64x64.png b/icon/dot64x64.png
new file mode 100644
index 000000000..660f729e3
Binary files /dev/null and b/icon/dot64x64.png differ
diff --git a/swad_changelog.h b/swad_changelog.h
index 618d96dc7..c560eeffc 100644
--- a/swad_changelog.h
+++ b/swad_changelog.h
@@ -118,13 +118,14 @@
 /****************************** Public constants *****************************/
 /*****************************************************************************/
 
-#define Log_PLATFORM_VERSION	"SWAD 15.56.3 (2015/12/05)"
+#define Log_PLATFORM_VERSION	"SWAD 15.56.4 (2015/12/05)"
 #define CSS_FILE		"swad15.56.1.css"
 
 // Number of lines (includes comments but not blank lines) has been got with the following command:
 // nl swad*.c swad*.h css/swad*.css py/swad*.py js/swad*.js soap/swad*.h sql/swad*.sql | tail -1
 /*
-        Version 15.56.3:  Dec 05, 2015	Changed icons ins tatistics about forums. (186843 lines)
+        Version 15.56.4:  Dec 05, 2015	Changed icons in forums and chat. (186844 lines)
+        Version 15.56.3:  Dec 05, 2015	Changed icons in statistics about forums. (186843 lines)
         Version 15.56.2:  Dec 05, 2015	Fixed bug in statistics about OERs. (186842 lines)
         Version 15.56.1:  Dec 02, 2015	Changes in HTML and CSS to validate HTML5 in W3C validator.
 					Removed about zone in versions of the page to be printed. (186837 lines)
diff --git a/swad_chat.c b/swad_chat.c
index ed6695897..986d55ff3 100644
--- a/swad_chat.c
+++ b/swad_chat.c
@@ -122,7 +122,7 @@ void Cht_ShowListOfAvailableChatRooms (void)
 
    /***** Title of top level *****/
    fprintf (Gbl.F.Out,"<li class=\"DAT\" style=\"height:25px;\">"
-                      "<img src=\"%s/chat16x16.gif\""
+                      "<img src=\"%s/chat64x64.gif\""
 	              " alt=\"%s\" title=\"%s\""
 	              " class=\"ICON16x16\" />"
                       " %s"
@@ -138,7 +138,7 @@ void Cht_ShowListOfAvailableChatRooms (void)
                            !Gbl.Usrs.Me.MyDegrees.Num);
    sprintf (ThisRoomFullName,"%s (%s)",Txt_General,Txt_SEX_PLURAL_abc[Usr_SEX_ALL]);
    Cht_WriteLinkToChat1 ("GBL_USR",Txt_SEX_PLURAL_Abc[Usr_SEX_ALL],ThisRoomFullName,1,IsLastItemInLevel);
-   fprintf (Gbl.F.Out,"<img src=\"%s/chat16x16.gif\""
+   fprintf (Gbl.F.Out,"<img src=\"%s/chat64x64.gif\""
 	              " alt=\"%s\" title=\"%s\""
 	              " class=\"ICON16x16\" />",
             Gbl.Prefs.IconsURL,
@@ -152,7 +152,7 @@ void Cht_ShowListOfAvailableChatRooms (void)
       case Rol_STUDENT:
          sprintf (ThisRoomFullName,"%s (%s)",Txt_General,Txt_ROLES_PLURAL_abc[Rol_STUDENT][Usr_SEX_ALL]);
          Cht_WriteLinkToChat1 ("GBL_STD",Txt_Students_ABBREVIATION,ThisRoomFullName,1,IsLastItemInLevel);
-	 fprintf (Gbl.F.Out,"<img src=\"%s/chat16x16.gif\""
+	 fprintf (Gbl.F.Out,"<img src=\"%s/chat64x64.gif\""
 			    " alt=\"%s\" title=\"%s\""
 			    " class=\"ICON16x16\" />",
 		  Gbl.Prefs.IconsURL,
@@ -162,7 +162,7 @@ void Cht_ShowListOfAvailableChatRooms (void)
       case Rol_TEACHER:
          sprintf (ThisRoomFullName,"%s (%s)",Txt_General,Txt_ROLES_PLURAL_abc[Rol_TEACHER][Usr_SEX_ALL]);
          Cht_WriteLinkToChat1 ("GBL_TCH",Txt_Teachers_ABBREVIATION,ThisRoomFullName,1,IsLastItemInLevel);
-	 fprintf (Gbl.F.Out,"<img src=\"%s/chat16x16.gif\""
+	 fprintf (Gbl.F.Out,"<img src=\"%s/chat64x64.gif\""
 			    " alt=\"%s\" title=\"%s\""
 			    " class=\"ICON16x16\" />",
 		  Gbl.Prefs.IconsURL,
@@ -213,7 +213,7 @@ void Cht_ShowListOfAvailableChatRooms (void)
                sprintf (ThisRoomShortName,"%s",Crs.ShortName);
                sprintf (ThisRoomFullName,"%s %s",Txt_Course,Crs.ShortName);
                Cht_WriteLinkToChat1 (ThisRoomCode,ThisRoomShortName,ThisRoomFullName,2,IsLastItemInLevel);
-               fprintf (Gbl.F.Out,"<img src=\"%s/dot16x16.gif\""
+               fprintf (Gbl.F.Out,"<img src=\"%s/dot64x64.png\""
         	                  " alt=\"%s\" title=\"%s\""
         	                  " class=\"ICON16x16\" />",
                         Gbl.Prefs.IconsURL,
diff --git a/swad_course.c b/swad_course.c
index 1e6f2bfb3..e06a82034 100644
--- a/swad_course.c
+++ b/swad_course.c
@@ -776,7 +776,7 @@ static void Crs_WriteListMyCoursesToSelectOne (void)
 		  sprintf (Gbl.Title,Txt_Go_to_X,Crs.ShortName);
 		  Act_LinkFormSubmit (Gbl.Title,
 		                      The_ClassForm[Gbl.Prefs.Theme]);
-		  fprintf (Gbl.F.Out,"<img src=\"%s/dot16x16.gif\""
+		  fprintf (Gbl.F.Out,"<img src=\"%s/dot64x64.png\""
 			             " alt=\"%s\" title=\"%s\""
 			             " class=\"ICON16x16\" />",
 		           Gbl.Prefs.IconsURL,
diff --git a/swad_forum.c b/swad_forum.c
index 93debfadd..8773e13bd 100644
--- a/swad_forum.c
+++ b/swad_forum.c
@@ -1803,7 +1803,7 @@ static void For_WriteLinkToTopLevelOfForums (void)
    Act_FormStart (ActSeeFor);
    For_PutAllHiddenParamsForum ();
    Act_LinkFormSubmit (Txt_Forums,The_ClassForm[Gbl.Prefs.Theme]);
-   fprintf (Gbl.F.Out,"<img src=\"%s/forum16x16.gif\""
+   fprintf (Gbl.F.Out,"<img src=\"%s/forum64x64.gif\""
 	              " alt=\"%s\" title=\"%s\""
 	              " class=\"ICON16x16\" />"
                       "&nbsp;%s"
@@ -2007,7 +2007,7 @@ static void For_WriteLinkToAForum (For_ForumType_t ForumType,bool ShowNumOfPosts
      {
       case For_FORUM_GLOBAL_USRS:
       case For_FORUM_GLOBAL_TCHS:
-         sprintf (Icon,"<img src=\"%s/forum16x16.gif\""
+         sprintf (Icon,"<img src=\"%s/forum64x64.gif\""
                        " alt=\"%s\" title=\"%s\""
                        " class=\"ICON16x16\" />",
                   Gbl.Prefs.IconsURL,
@@ -2015,7 +2015,7 @@ static void For_WriteLinkToAForum (For_ForumType_t ForumType,bool ShowNumOfPosts
          break;
       case For_FORUM_SWAD_USRS:
       case For_FORUM_SWAD_TCHS:
-         sprintf (Icon,"<img src=\"%s/swad16x16.gif\""
+         sprintf (Icon,"<img src=\"%s/swad64x64.gif\""
                        " alt=\"%s\" title=\"%s\""
                        " class=\"ICON16x16\" />",
                   Gbl.Prefs.IconsURL,
@@ -2030,7 +2030,7 @@ static void For_WriteLinkToAForum (For_ForumType_t ForumType,bool ShowNumOfPosts
          break;
       case For_FORUM_COURSE_USRS:
       case For_FORUM_COURSE_TCHS:
-         sprintf (Icon,"<img src=\"%s/dot16x16.gif\""
+         sprintf (Icon,"<img src=\"%s/dot64x64.png\""
                        " alt=\"%s\" title=\"%s\""
                        " class=\"ICON16x16\" />",
                   Gbl.Prefs.IconsURL,