diff --git a/data/com.github.tkashkin.gamehub.gresource.xml b/data/com.github.tkashkin.gamehub.gresource.xml
index 6f9b6ab4..127a483e 100644
--- a/data/com.github.tkashkin.gamehub.gresource.xml
+++ b/data/com.github.tkashkin.gamehub.gresource.xml
@@ -1,6 +1,7 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <gresources>
-	<gresource prefix="/com/github/tkashkin/gamehub">
-		<file alias="GameHub.css" compressed="true">GameHub.css</file>
+	<gresource prefix="/com/github/tkashkin/gamehub/css">
+		<file alias="app.css" compressed="true">css/app.css</file>
+		<file alias="themes/elementary.css" compressed="true">css/themes/elementary.css</file>
 	</gresource>
 </gresources>
diff --git a/data/GameHub.css b/data/css/app.css
similarity index 98%
rename from data/GameHub.css
rename to data/css/app.css
index 9bc97f78..ee317064 100755
--- a/data/GameHub.css
+++ b/data/css/app.css
@@ -1,7 +1,3 @@
-@define-color colorAccent #a56de2;
-@define-color selected_bg_color @colorAccent;
-@define-color theme_selected_bg_color @colorAccent;
-
 .gamecard
 {
 	opacity: 0.75;
diff --git a/data/css/themes/elementary.css b/data/css/themes/elementary.css
new file mode 100644
index 00000000..de76ae11
--- /dev/null
+++ b/data/css/themes/elementary.css
@@ -0,0 +1,5 @@
+@define-color colorPrimary mix(#7239b3, @titlebar_color, 0.2);
+@define-color colorAccent #8c53cb;
+@define-color theme_selected_bg_color @colorAccent;
+@define-color textColorPrimary mix(@colorPrimary, #fafafa, 0.95);
+@define-color textColorPrimaryShadow alpha(#7239b3, 0.4);
diff --git a/src/app.vala b/src/app.vala
index ac138e71..9fbeba9d 100644
--- a/src/app.vala
+++ b/src/app.vala
@@ -151,9 +151,28 @@ namespace GameHub
 			weak IconTheme default_theme = IconTheme.get_default();
 			default_theme.add_resource_path("/com/github/tkashkin/gamehub/icons");
 
-			var provider = new CssProvider();
-			provider.load_from_resource("/com/github/tkashkin/gamehub/GameHub.css");
-			StyleContext.add_provider_for_screen(Screen.get_default(), provider, Gtk.STYLE_PROVIDER_PRIORITY_APPLICATION);
+			var screen = Screen.get_default();
+
+			var app_provider = new CssProvider();
+			app_provider.load_from_resource("/com/github/tkashkin/gamehub/css/app.css");
+
+			var elementary_provider = new CssProvider();
+			elementary_provider.load_from_resource("/com/github/tkashkin/gamehub/css/themes/elementary.css");
+
+			StyleContext.add_provider_for_screen(screen, app_provider, Gtk.STYLE_PROVIDER_PRIORITY_APPLICATION);
+
+			var settings = Gtk.Settings.get_for_screen(screen);
+			settings.notify["gtk-theme-name"].connect(() => {
+				if(settings.gtk_theme_name == "elementary")
+				{
+					StyleContext.add_provider_for_screen(screen, elementary_provider, Gtk.STYLE_PROVIDER_PRIORITY_APPLICATION);
+				}
+				else
+				{
+					StyleContext.remove_provider_for_screen(screen, elementary_provider);
+				}
+			});
+			settings.notify_property("gtk-theme-name");
 		}
 
 		protected override void activate()
diff --git a/src/data/sources/humble/HumbleGame.vala b/src/data/sources/humble/HumbleGame.vala
index 7545deb7..49d637bc 100644
--- a/src/data/sources/humble/HumbleGame.vala
+++ b/src/data/sources/humble/HumbleGame.vala
@@ -419,7 +419,7 @@ namespace GameHub.Data.Sources.Humble
 
 			public bool is_url_update_required()
 			{
-				if(part.url == null || part.url.length == 0) return true;
+				if(part.url == null || part.url.length == 0 || part.url.has_prefix("humble-trove-unsigned://")) return true;
 				if(!part.url.contains("&ttl=")) return false;
 				var ttl_string = part.url.split("&ttl=")[1].split("&")[0];
 				var ttl = new DateTime.from_unix_utc(int64.parse(ttl_string));
@@ -432,9 +432,13 @@ namespace GameHub.Data.Sources.Humble
 			{
 				if(!(game.source is Trove) || !is_url_update_required()) return null;
 
-				//debug("[HumbleGame.Installer.update_url] Old URL: '%s'; (%s)", part.url, game.full_id);
 				var new_url = Trove.sign_url(id, dl_id, ((Humble) game.source).user_token);
-				//debug("[HumbleGame.Installer.update_url] New URL: '%s'; (%s)", new_url, game.full_id);
+
+				if(GameHub.Application.log_verbose)
+				{
+					debug("[HumbleGame.Installer.update_url] Old URL: '%s'; (%s)", part.url, game.full_id);
+					debug("[HumbleGame.Installer.update_url] New URL: '%s'; (%s)", new_url, game.full_id);
+				}
 
 				if(new_url != null) part.url = new_url;
 
diff --git a/src/data/sources/humble/Trove.vala b/src/data/sources/humble/Trove.vala
index 15b57a6c..846629ed 100644
--- a/src/data/sources/humble/Trove.vala
+++ b/src/data/sources/humble/Trove.vala
@@ -153,7 +153,14 @@ namespace GameHub.Data.Sources.Humble
 			var signed_node = Parser.parse_remote_json_file(Trove.SIGN_URL, "POST", null, headers, data);
 			var signed = signed_node != null && signed_node.get_node_type() == Json.NodeType.OBJECT ? signed_node.get_object() : null;
 
-			return signed != null && signed.has_member("signed_url") ? signed.get_string_member("signed_url") : null;
+			var signed_url = signed != null && signed.has_member("signed_url") ? signed.get_string_member("signed_url") : null;
+
+			if(GameHub.Application.log_verbose)
+			{
+				debug("[Trove.sign_url] '%s':'%s' -> '%s'", machine_name, filename, signed_url);
+			}
+
+			return signed_url;
 		}
 	}
 }