diff --git a/examples/demo/site/modules/messaging/files/css/messaging.css b/examples/demo/site/modules/messaging/files/css/messaging.css
index 5633f3e..561ec9b 100644
--- a/examples/demo/site/modules/messaging/files/css/messaging.css
+++ b/examples/demo/site/modules/messaging/files/css/messaging.css
@@ -1,5 +1,4 @@
 .messaging-box fieldset {
-  resize: both;
   display: flex;
   flex-wrap: wrap;
   align-items: flex-start;
diff --git a/examples/demo/site/modules/messaging/files/scss/messaging.scss b/examples/demo/site/modules/messaging/files/scss/messaging.scss
index 86131b5..1a7d32d 100644
--- a/examples/demo/site/modules/messaging/files/scss/messaging.scss
+++ b/examples/demo/site/modules/messaging/files/scss/messaging.scss
@@ -1,6 +1,5 @@
 .messaging-box {
 	fieldset {
-		resize: both;
 		display: flex; 
 		flex-wrap: wrap;
 		align-items: flex-start;
diff --git a/examples/demo/site/themes/bootstrap/page.tpl b/examples/demo/site/themes/bootstrap/page.tpl
index e31018d..3871b3c 100644
--- a/examples/demo/site/themes/bootstrap/page.tpl
+++ b/examples/demo/site/themes/bootstrap/page.tpl
@@ -4,11 +4,11 @@
   <meta charset="utf-8">
 	<meta name="viewport" content="width=device-width, initial-scale=1">
 	<!-- EWF CMS -->
-	<link rel="stylesheet" href="{$site_url/}theme/css/style.css">
+	<link rel="stylesheet" href="{$theme_path/}css/style.css">
  
 	<!-- jQuery dep -->
-	<script src="{$site_url/}theme/js/jquery-1.10.2.min.js"></script>
-	<script src="{$site_url/}theme/js/popup_search.js"></script>
+	<script src="{$theme_path/}js/jquery-1.10.2.min.js"></script>
+	<script src="{$theme_path/}js/popup_search.js"></script>
 
 {if isset="$head"}{$head/}{/if}
 {if isset="$styles"}{$styles/}{/if}
diff --git a/modules/admin/cms_admin_module_administration.e b/modules/admin/cms_admin_module_administration.e
index 047b0fc..8d33b0e 100644
--- a/modules/admin/cms_admin_module_administration.e
+++ b/modules/admin/cms_admin_module_administration.e
@@ -133,7 +133,7 @@ feature -- Hooks
 	response_alter (a_response: CMS_RESPONSE)
 			-- <Precursor>
 		do
-			a_response.add_style (a_response.url ("/module/" + name + "/files/css/admin.css", Void), Void)
+			a_response.add_style (a_response.module_resource_url (Current, "/files/css/admin.css", Void), Void)
 		end
 
 	menu_system_alter (a_menu_system: CMS_MENU_SYSTEM; a_response: CMS_RESPONSE)
diff --git a/modules/auth/cms_authentication_module.e b/modules/auth/cms_authentication_module.e
index 148864e..83311aa 100644
--- a/modules/auth/cms_authentication_module.e
+++ b/modules/auth/cms_authentication_module.e
@@ -1157,7 +1157,7 @@ feature -- Response Alter
 	response_alter (a_response: CMS_RESPONSE)
 		do
 			a_response.add_javascript_url ("https://www.google.com/recaptcha/api.js")
-			a_response.add_style (a_response.url ("/module/" + name + "/files/css/auth.css", Void), Void)
+			a_response.add_style (a_response.module_resource_url (Current, "/files/css/auth.css", Void), Void)
 		end
 
 feature {NONE} -- Implementation
diff --git a/modules/blog/cms_blog_module.e b/modules/blog/cms_blog_module.e
index 4b8ac7f..6aa3b52 100644
--- a/modules/blog/cms_blog_module.e
+++ b/modules/blog/cms_blog_module.e
@@ -139,7 +139,7 @@ feature -- Hooks
 
 	response_alter (a_response: CMS_RESPONSE)
 		do
-			a_response.add_style (a_response.url ("/module/" + name + "/files/css/blog.css", Void), Void)
+			a_response.add_style (a_response.module_resource_url (Current, "/files/css/blog.css", Void), Void)
 		end
 
 	menu_system_alter (a_menu_system: CMS_MENU_SYSTEM; a_response: CMS_RESPONSE)
diff --git a/modules/comments/cms_comments_module.e b/modules/comments/cms_comments_module.e
index 5e734ba..6e69f99 100644
--- a/modules/comments/cms_comments_module.e
+++ b/modules/comments/cms_comments_module.e
@@ -90,7 +90,7 @@ feature -- Hooks
 
 	response_alter (a_response: CMS_RESPONSE)
 		do
-			a_response.add_style (a_response.url ("/module/" + name + "/files/css/comments.css", Void), Void)
+			a_response.add_style (a_response.module_resource_url (Current, "/files/css/comments.css", Void), Void)
 		end
 
 end
diff --git a/modules/contact/src/cms_contact_module.e b/modules/contact/src/cms_contact_module.e
index 4dfef99..6db9fa3 100644
--- a/modules/contact/src/cms_contact_module.e
+++ b/modules/contact/src/cms_contact_module.e
@@ -186,7 +186,7 @@ feature -- Hooks
 							l_tpl_block.set_value (l_recaptcha_site_key, "recaptcha_site_key")
 						end
 						a_response.add_block (l_tpl_block, "content")
-						a_response.add_style (a_response.url ("/module/" + name + "/files/css/contact.css", Void), Void)
+						a_response.add_style (a_response.module_resource_url (Current, "/files/css/contact.css", Void), Void)
 					else
 						debug ("cms")
 							a_response.add_warning_message ("Error with block [" + a_block_id + "]")
@@ -200,7 +200,7 @@ feature -- Hooks
 		local
 			f: CMS_FORM
 		do
-			a_response.add_style (a_response.url ("/module/" + name + "/files/css/contact.css", Void), Void)
+			a_response.add_style (a_response.module_resource_url (Current, "/files/css/contact.css", Void), Void)
 			if attached smarty_template_block (Current, "contact", api) as l_tpl_block then
 				if attached recaptcha_site_key (api) as l_recaptcha_site_key then
 					l_tpl_block.set_value (l_recaptcha_site_key, "recaptcha_site_key")
@@ -281,7 +281,7 @@ feature -- Hooks
 		do
 			write_information_log (generator + ".handle_post_contact")
 			create {GENERIC_VIEW_CMS_RESPONSE} r.make (req, res, api)
-			r.add_style (r.url ("/module/" + name + "/files/css/contact.css", Void), Void)
+			r.add_style (r.module_resource_url (Current, "/files/css/contact.css", Void), Void)
 			r.values.force (False, "has_error")
 
 			create vars.make_caseless (5)
diff --git a/modules/feed_aggregator/feed_aggregator_module.e b/modules/feed_aggregator/feed_aggregator_module.e
index d6d5160..60a335a 100644
--- a/modules/feed_aggregator/feed_aggregator_module.e
+++ b/modules/feed_aggregator/feed_aggregator_module.e
@@ -326,7 +326,7 @@ feature -- Hook
 
 	response_alter (a_response: CMS_RESPONSE)
 		do
-			a_response.add_style (a_response.url ("/module/" + name + "/files/css/feed_aggregator.css", Void), Void)
+			a_response.add_style (a_response.module_resource_url (Current, "/files/css/feed_aggregator.css", Void), Void)
 		end
 
 	menu_system_alter (a_menu_system: CMS_MENU_SYSTEM; a_response: CMS_RESPONSE)
diff --git a/modules/files/cms_files_module.e b/modules/files/cms_files_module.e
index b48c3a5..98df481 100644
--- a/modules/files/cms_files_module.e
+++ b/modules/files/cms_files_module.e
@@ -146,7 +146,7 @@ feature -- Handler
 				create {GENERIC_VIEW_CMS_RESPONSE} r.make (req, res, api)
 
 					-- add style
-				r.add_style (r.url ("/module/" + name + "/files/css/files.css", Void), Void)
+				r.add_style (r.module_resource_url (Current, "/files/css/files.css", Void), Void)
 
 				create body.make_empty
 
@@ -245,7 +245,7 @@ feature -- Handler
 				body.append ("<h1> Upload files </h1>%N")
 
 					-- set style
-				r.add_style (r.url ("/module/" + name + "/files/css/files.css", Void), Void)
+				r.add_style (r.module_resource_url (Current, "/files/css/files.css", Void), Void)
 
 				if api.has_permission (upload_files_permission) then
 					body.append ("<p>Please choose file(s) to upload.</p>")
@@ -269,8 +269,8 @@ feature -- Handler
 						body.append ("<a href=%""+ r.url (uploads_location, Void) +"?basic_upload=no%">Use advanced file uploading.</a>%N")
 					else
 							-- add JS for dropzone
-						r.add_javascript_url (r.url ("/module/" + name + "/files/js/dropzone.js", Void))
-						r.add_style (r.url ("/module/" + name + "/files/js/dropzone.css", Void), Void)
+						r.add_javascript_url (r.module_resource_url (Current, "/files/js/dropzone.js", Void))
+						r.add_style (r.module_resource_url (Current, "/files/js/dropzone.css", Void), Void)
 
 							-- create form to choose files and upload them
 						body.append ("<form action=%"" + r.url (uploads_location, Void) + "%" class=%"dropzone%">")
diff --git a/modules/messaging/src/cms_messaging_module.e b/modules/messaging/src/cms_messaging_module.e
index 2bbec23..b0f589d 100644
--- a/modules/messaging/src/cms_messaging_module.e
+++ b/modules/messaging/src/cms_messaging_module.e
@@ -109,7 +109,7 @@ feature -- Hooks
 		local
 			f: CMS_FORM
 		do
-			a_response.add_style (a_response.url ("/module/" + name + "/files/css/messaging.css", Void), Void)
+			a_response.add_style (a_response.module_resource_url (Current, "/files/css/messaging.css", Void), Void)
 -- TODO: use template to overwrite/customize			
 --			if attached smarty_template_block (Current, "messaging", api) as l_tpl_block then
 --				across
@@ -215,7 +215,7 @@ $(document).ready(function() {
     });
 });
 </script>
-			]")			
+			]")
 			Result := f
 		end
 
@@ -249,7 +249,7 @@ $(document).ready(function() {
 		do
 			if api.has_permission ("message any user") then
 				create {GENERIC_VIEW_CMS_RESPONSE} r.make (req, res, api)
-				r.add_style (r.url ("/module/" + name + "/files/css/messaging.css", Void), Void)
+				r.add_style (r.module_resource_url (Current, "/files/css/messaging.css", Void), Void)
 
 				create s.make_empty
 
diff --git a/modules/node/cms_node_module.e b/modules/node/cms_node_module.e
index 386f820..a0d2ba7 100644
--- a/modules/node/cms_node_module.e
+++ b/modules/node/cms_node_module.e
@@ -224,7 +224,7 @@ feature -- Hooks
 	response_alter (a_response: CMS_RESPONSE)
 			-- <Precursor>
 		do
-			a_response.add_style (a_response.url ("/module/" + name + "/files/css/node.css", Void), Void)
+			a_response.add_style (a_response.module_resource_url (Current, "/files/css/node.css", Void), Void)
 		end
 
 	block_list: ITERABLE [like {CMS_BLOCK}.name]
diff --git a/modules/taxonomy/cms_taxonomy_module.e b/modules/taxonomy/cms_taxonomy_module.e
index a61745d..1d43832 100644
--- a/modules/taxonomy/cms_taxonomy_module.e
+++ b/modules/taxonomy/cms_taxonomy_module.e
@@ -147,7 +147,7 @@ feature -- Hooks
 
 	response_alter (a_response: CMS_RESPONSE)
 		do
-			a_response.add_style (a_response.url ("/module/" + name + "/files/css/taxonomy.css", Void), Void)
+			a_response.add_style (a_response.module_resource_url (Current, "/files/css/taxonomy.css", Void), Void)
 		end
 
 end
diff --git a/modules/wikitext/wikitext_module.e b/modules/wikitext/wikitext_module.e
index 80bda1f..3c16e0a 100644
--- a/modules/wikitext/wikitext_module.e
+++ b/modules/wikitext/wikitext_module.e
@@ -64,7 +64,7 @@ feature -- Hooks
 
 	response_alter (a_response: CMS_RESPONSE)
 		do
-			a_response.add_style (a_response.url ("/module/" + name + "/files/css/wikitext.css", Void), Void)
+			a_response.add_style (a_response.module_resource_url (Current, "/files/css/wikitext.css", Void), Void)
 		end
 
 end
diff --git a/src/configuration/cms_setup.e b/src/configuration/cms_setup.e
index 8f10e0f..e2220fb 100644
--- a/src/configuration/cms_setup.e
+++ b/src/configuration/cms_setup.e
@@ -99,7 +99,7 @@ feature {NONE} -- Initialization
 			end
 
 				-- Selected theme's name
-			site_theme_name := text_item_or_default ("theme", "default")
+			site_theme_name := text_item_or_default ("site.theme", "default")
 			set_theme (site_theme_name)
 
 				-- Administration
@@ -325,6 +325,18 @@ feature -- Settings
 	is_debug: BOOLEAN
 			-- Is debug mode enabled?
 
+	set_site_mode
+			-- Switch to site mode.
+			--| 	- Change theme
+			--| 	- ..
+		do
+			if is_theme_valid (site_theme_name) then
+				set_theme (site_theme_name)
+			else
+					-- Keep previous theme!
+			end
+		end
+
 	set_administration_mode
 			-- Switch to administration mode.
 			--| 	- Change theme
@@ -341,7 +353,7 @@ feature -- Settings
 			-- Set theme to `a_name`.
 		do
 			theme_name := a_name.as_string_32
-			theme_location := themes_location.extended (theme_name)
+			theme_location := theme_location_for (theme_name)
 		end
 
 feature -- Query
@@ -417,7 +429,7 @@ feature -- Access: theme
 		local
 			fu: FILE_UTILITIES
 		do
-			Result := fu.directory_path_exists (themes_location.extended (a_theme_name))
+			Result := fu.directory_path_exists (theme_location_for (a_theme_name))
 		end
 
 	theme_information_location: PATH
@@ -437,6 +449,12 @@ feature -- Access: theme
 			-- Default: same as site theme.
 			-- TODO: change to builtin "admin" theme?
 
+	theme_location_for (a_theme_name: READABLE_STRING_GENERAL): PATH
+			-- Theme directory location for theme `a_theme_name`.
+		do
+			Result := themes_location.extended (a_theme_name)
+		end
+
 feature -- Access
 
 	mailer: NOTIFICATION_MAILER
diff --git a/src/service/cms_api.e b/src/service/cms_api.e
index ea5aca5..57c0946 100644
--- a/src/service/cms_api.e
+++ b/src/service/cms_api.e
@@ -116,6 +116,7 @@ feature {NONE} -- Initialize
 	initialize_site_url
 				-- Initialize site and base url.
 		local
+			l_base_url: detachable READABLE_STRING_8
 			l_url: detachable STRING_8
 			i,j: INTEGER
 		do
@@ -134,12 +135,23 @@ feature {NONE} -- Initialize
 			if i > 0 then
 				j := l_url.index_of ('/', i + 3)
 				if j > 0 then
-					base_url := l_url.substring (j, l_url.count)
+					l_base_url := l_url.substring (j, l_url.count)
 				end
 			end
+			if l_base_url /= Void then
+				base_url := l_base_url
+				if l_base_url.ends_with_general ("/") then
+					create base_path.make_from_string (l_base_url)
+				else
+					create base_path.make_from_string (l_base_url + "/")
+				end
+			else
+				create base_path.make_from_string ("/")
+			end
 		ensure
 			site_url_set: site_url /= Void
 			site_url_ends_with_slash: site_url.ends_with_general ("/")
+			base_path_set: base_path /= Void and then base_path.ends_with_general ("/")
 		end
 
 	initialize_content_types
@@ -380,6 +392,9 @@ feature -- Access: url
 			--| Usually it is Void, but it could be
 			--|  /project/demo/
 
+	base_path: IMMUTABLE_STRING_8
+			-- Base path, default to "/"
+
 	site_url: IMMUTABLE_STRING_8
 			-- Site url
 
@@ -493,10 +508,20 @@ feature -- Helpers: html links
 
 feature -- Settings
 
+	switch_to_site_mode
+		do
+			if is_administration_mode then
+				setup.set_site_mode
+				is_administration_mode := False
+			end
+		end
+
 	switch_to_administration_mode
 		do
-			setup.set_administration_mode
-			is_administration_mode := True
+			if not is_administration_mode then
+				setup.set_administration_mode
+				is_administration_mode := True
+			end
 		end
 
 	is_administration_mode: BOOLEAN
@@ -1101,6 +1126,14 @@ feature -- Environment/ theme
 			Result := setup.files_location
 		end
 
+	files_path: STRING_8
+		do
+			create Result.make_from_string (base_path)
+			Result.append ("files/")
+		ensure
+			ends_with_slash: Result.ends_with ("/")
+		end
+
 	cache_location: PATH
 			-- CMS internal cache location.
 		do
@@ -1118,16 +1151,44 @@ feature -- Environment/ theme
 			Result := setup.theme_name
 		end
 
+	theme_path: STRING_8
+			-- URL path to the theme.
+		do
+			Result := theme_path_for (theme_name)
+		ensure
+			ends_with_slash: Result.ends_with ("/")
+		end
+
 	theme_assets_location: PATH
 			-- assets (js, css, images, etc).
 		do
-			debug ("refactor_fixme")
-				fixme ("Check if we really need it")
-			end
 				-- Check how to get this path from the CMS_THEME information.
 			Result := theme_location.extended ("assets")
 		end
 
+feature -- Theming path helpers		
+
+	theme_location_for (a_theme_name: READABLE_STRING_GENERAL): PATH
+		do
+			Result := setup.theme_location_for (a_theme_name)
+		end
+		
+	theme_path_for (a_theme_name: READABLE_STRING_GENERAL): STRING_8
+			-- URL path to the theme `a_theme_name`.
+		do
+			create Result.make_from_string (base_path)
+			Result.append ("theme/")
+			Result.append (url_encoded (a_theme_name))
+			Result.append_character ('/')
+		ensure
+			ends_with_slash: Result.ends_with ("/")
+		end
+
+	theme_assets_location_for (a_theme_name: READABLE_STRING_GENERAL): PATH
+		do
+			Result := theme_location_for (a_theme_name).extended ("assets")
+		end
+
 feature -- Environment/ module		
 
 	module_configuration (a_module: CMS_MODULE; a_name: detachable READABLE_STRING_GENERAL): detachable CONFIG_READER
diff --git a/src/service/cms_execution.e b/src/service/cms_execution.e
index 48720eb..bcac24c 100644
--- a/src/service/cms_execution.e
+++ b/src/service/cms_execution.e
@@ -195,16 +195,17 @@ feature -- Settings: router
 	configure_api_file_handler (a_router: WSF_ROUTER)
 		local
 			fhdl: WSF_FILE_SYSTEM_HANDLER
+			themehdl: CMS_THEME_FILE_SYSTEM_HANDLER
 		do
 			api.logger.put_information (generator + ".configure_api_file_handler", Void)
 
-			create fhdl.make_hidden_with_path (api.theme_assets_location)
-			fhdl.disable_index
-			fhdl.set_not_found_handler (agent (ia_uri: READABLE_STRING_8; ia_req: WSF_REQUEST; ia_res: WSF_RESPONSE)
+			create themehdl.make (api)
+			themehdl.set_not_found_handler (agent (ia_uri: READABLE_STRING_8; ia_req: WSF_REQUEST; ia_res: WSF_RESPONSE)
 				do
 					execute_default (ia_req, ia_res)
 				end)
-			a_router.handle ("/theme/", fhdl, router.methods_GET)
+				-- See CMS_API.api.theme_path_for (...) for the hardcoded "/theme/" path.
+			a_router.handle ("/theme/{theme_id}{/vars}", themehdl, router.methods_GET)
 
 				-- "/files/.."
 			create fhdl.make_hidden_with_path (api.files_location)
@@ -213,7 +214,7 @@ feature -- Settings: router
 				do
 					execute_default (ia_req, ia_res)
 				end)
-			a_router.handle ("/files/", fhdl, router.methods_GET)
+			a_router.handle (api.files_path, fhdl, router.methods_GET)
 
 				-- files folder from specific module.
 			a_router.handle ("/module/{modname}/files{/vars}", create {WSF_URI_TEMPLATE_AGENT_HANDLER}.make (agent handle_module_files), a_router.methods_get)
@@ -244,6 +245,7 @@ feature -- Request execution
 	initialize_site_execution
 			-- Initialize for site execution.
 		do
+			api.switch_to_site_mode
 			api.initialize_execution
 			setup_router
 		end
diff --git a/src/service/handler/cms_theme_file_system_handler.e b/src/service/handler/cms_theme_file_system_handler.e
new file mode 100644
index 0000000..f599ce1
--- /dev/null
+++ b/src/service/handler/cms_theme_file_system_handler.e
@@ -0,0 +1,59 @@
+note
+	description: "Summary description for {CMS_THEME_FILE_SYSTEM_HANDLER}."
+	author: ""
+	date: "$Date$"
+	revision: "$Revision$"
+
+class
+	CMS_THEME_FILE_SYSTEM_HANDLER
+
+inherit
+	WSF_URI_TEMPLATE_HANDLER
+
+create
+	make
+
+feature -- Initialization
+
+	make (a_cms_api: CMS_API)
+		do
+			api := a_cms_api
+		end
+
+	api: CMS_API
+
+feature -- Execution
+
+	execute (req: WSF_REQUEST; res: WSF_RESPONSE)
+			-- Execute `req' responding in `res'.
+		local
+			fhdl: WSF_FILE_SYSTEM_HANDLER
+			not_found: NOT_FOUND_ERROR_CMS_RESPONSE
+		do
+			if attached {WSF_STRING} req.path_parameter ("theme_id") as l_theme_id then
+				create fhdl.make_hidden_with_path (api.theme_assets_location_for (l_theme_id.value))
+				fhdl.disable_index
+				fhdl.set_not_found_handler (not_found_handler)
+				fhdl.execute_starts_with (api.theme_path_for (l_theme_id.value), req, res)
+--				a_router.handle (api.theme_path, fhdl, router.methods_GET)
+			elseif attached not_found_handler as h then
+				h.call (req.percent_encoded_path_info, req, res)
+			else
+				create not_found.make (req, res, api)
+				not_found.execute
+			end
+		end
+
+feature -- Not found handling
+
+	not_found_handler: detachable PROCEDURE [READABLE_STRING_8, WSF_REQUEST, WSF_RESPONSE]
+
+	set_not_found_handler (h: like not_found_handler)
+		do
+			not_found_handler := h
+		end
+
+note
+	copyright: "2011-2017, Jocelyn Fiat, Javier Velilla, Eiffel Software and others"
+	license: "Eiffel Forum License v2 (see http://www.eiffel.com/licensing/forum.txt)"
+end
diff --git a/src/service/response/cms_response.e b/src/service/response/cms_response.e
index 8dba680..810195f 100644
--- a/src/service/response/cms_response.e
+++ b/src/service/response/cms_response.e
@@ -25,7 +25,10 @@ feature {NONE} -- Initialization
 			create header.make
 			create values.make (3)
 			site_url := a_api.site_url
-			base_url := a_api.base_url
+			if attached a_api.base_url as l_base_url then
+				base_url := l_base_url
+			end
+			base_path := a_api.base_path
 			initialize
 		end
 
@@ -124,8 +127,8 @@ feature -- URL utilities
 			if attached setup.front_page_path as l_front_page_path then
 				Result := l_front_page_path.same_string (l_path_info)
 			else
-				if attached base_url as l_base_url then
-					Result := l_path_info.same_string (l_base_url)
+				if base_path.same_string (l_path_info) then
+					Result := True
 				else
 					Result := l_path_info.is_empty or else l_path_info.same_string ("/")
 				end
@@ -134,12 +137,18 @@ feature -- URL utilities
 
 	site_url: IMMUTABLE_STRING_8
 			-- Absolute site url.
+			-- Always ends with '/'
 
 	base_url: detachable IMMUTABLE_STRING_8
 			-- Base url if any.
 			--| Usually it is Void, but it could be
 			--|  /project/demo/
 
+	base_path: IMMUTABLE_STRING_8
+			-- Base path, default to "/".
+			-- Always ends with '/'
+			-- Could be /project/demo/
+
 feature -- Access: CMS
 
 	site_name: STRING_32
@@ -1242,6 +1251,7 @@ feature -- Generation
 
 				-- Variables
 			page.register_variable (absolute_url ("", Void), "site_url")
+			page.register_variable (base_path, "base_path")
 			page.register_variable (absolute_url ("", Void), "host") -- Same as `site_url'.
 			page.register_variable (request.is_https, "is_https")
 			if attached title as l_title then
@@ -1253,6 +1263,8 @@ feature -- Generation
 			page.set_is_https (request.is_https)
 
 				-- Variables/Misc
+			page.register_variable (is_administration_mode, "is_administration_mode")
+			page.register_variable (api.theme_path, "theme_path")
 
 -- FIXME: logo .. could be a settings of theme, managed by admin front-end/database.
 --			if attached logo_location as l_logo then
@@ -1398,6 +1410,14 @@ feature -- Helpers: URLs
 			Result := api.location_url (a_location, opts)
 		end
 
+	module_resource_url (a_module: CMS_MODULE; a_path: READABLE_STRING_8; opts: detachable CMS_API_OPTIONS): STRING_8
+			-- Url for resource `a_path` associated with module `a_module`.
+		require
+			a_valid_valid: a_path.is_empty or else a_path.starts_with ("/")
+		do
+			Result := url ("/module/" + a_module.name + a_path, opts)
+		end
+
 	user_url (u: CMS_USER): like url
 		require
 			u_with_id: u.has_id