Fix start menu style

Flos_Gtk4/res/cambalache/aboutwin.ui

@@ -1,8 +1,8 @@
 <?xml version='1.0' encoding='UTF-8'?>
-<!-- Created with Cambalache 0.12.1 -->
+<!-- Created with Cambalache 0.16.0 -->
 <interface>
   <!-- interface-name windows.ui -->
-  <requires lib="gtk" version="4.10"/>
+  <requires lib="gtk" version="4.12"/>
   <template class="AboutWin" parent="GtkWindow">
     <property name="halign">baseline</property>
     <property name="height-request">400</property>
@@ -46,7 +46,7 @@
                 <child>
                   <object class="GtkLabel">
                     <property name="halign">start</property>
-                    <property name="label">4.5 The Flying Wing</property>
+                    <property name="label">4.4 The Flying Wing</property>
                   </object>
                 </child>
                 <child>

Flos_Gtk4/res/cambalache/temp.ui

@@ -1,10 +1,11 @@
 <?xml version='1.0' encoding='UTF-8'?>
-<!-- Created with Cambalache 0.12.1 -->
+<!-- Created with Cambalache 0.16.0 -->
 <interface>
-  <requires lib="gtk" version="4.10"/>
+  <requires lib="gtk" version="4.0"/>
   <object class="GtkWindow">
     <child>
       <object class="GtkBox">
+        <property name="css-classes">test</property>
         <property name="orientation">vertical</property>
       </object>
     </child>

Flos_Gtk4/res/cambalache/windows.cmb

@@ -1,6 +1,6 @@
 <?xml version='1.0' encoding='UTF-8' standalone='no'?>
 <!DOCTYPE cambalache-project SYSTEM "cambalache-project.dtd">
-<cambalache-project version="0.12.0" target_tk="gtk-4.0">
+<cambalache-project version="0.13.1" target_tk="gtk-4.0">
   <ui>
 	(1,1,"windows.ui","aboutwin.ui",None,None,None,None,None,None,None),
 	(2,None,None,"temp.ui",None,None,None,None,None,None,None)
@@ -57,6 +57,7 @@
 	(1,16,"GtkWidget","halign","start",None,None,None,None,None,None,None,None,None),
 	(1,17,"GtkLabel","label","       The project is to memorize the FlWin and the flos project. \nFlWin project started in 2016, in 2017, the name is changed \nto flos. In 2018, the project name is reset to FlWin. The last \nversion of FlWin/Flos is FlWin 5.x, and tested in the start of \n2019, which is never been released.\n         I think the flos 2.0 is the best release of that project, \nso the idea is base on the flos 2.0 build.",None,None,None,None,None,None,None,None,None),
 	(1,17,"GtkLabel","selectable","True",None,None,None,None,None,None,None,None,None),
-	(2,2,"GtkOrientable","orientation","vertical",None,None,None,None,None,None,None,None,None)
+	(2,2,"GtkOrientable","orientation","vertical",None,None,None,None,None,None,None,None,None),
+	(2,2,"GtkWidget","css-classes","test",None,None,None,None,None,None,None,None,None)
   </object_property>
 </cambalache-project>

Flos_Gtk4/res/style_dark.css

@@ -24,7 +24,11 @@
 }
 
 .main_style popover {
-    background-color: alpha(gray, 0.7);
+    background-color: alpha(gray, 0.8);
+}
+
+.main_style popover contents {
+    background-color: transparent;
 }
 
 .main_style separator {
@@ -40,6 +44,18 @@
     color: white;
 }
 
+.dock_button {
+    background-color: transparent;
+}
+
+.dock_button box {
+    background-color: transparent;
+}
+
+.dock_button:hover {
+    background-color: alpha(gray, 0.7);
+}
+
 .default_style box {
     background-color: transparent;
 }
@@ -47,3 +63,8 @@
 .default_style separator {
     background-color: transparent;
 }
+
+.btn_style{
+    background-color: transparent;
+    color: white;
+}

Flos_Gtk4/src/core/MyDock.cpp

@@ -129,7 +129,7 @@ void add_dock(MainWin *win)
          child != NULL;
          child = gtk_widget_get_next_sibling(child))
     {
-        gtk_widget_add_css_class(child, "main_style");
+        gtk_widget_add_css_class(child, "dock_button");
         gtk_style_context_add_provider((child),
                                        main_win_get_style(win), G_MAXINT);
     }

Flos_Gtk4/src/core/Start.cpp

@@ -50,11 +50,14 @@ void add_start(MainWin *win, GtkBox *box)
     btn_more = (GtkMenuButton *)gtk_builder_get_object(startbuilder, "btn_more");
     image_all = (GtkImage *)gtk_builder_get_object(startbuilder, "image_all");
     image_back = (GtkImage *)gtk_builder_get_object(startbuilder, "image_back");
-    if(main_win_get_dark_mode(win)){
+    if (main_win_get_dark_mode(win))
+    {
         gtk_menu_button_set_icon_name(btn_more, "arrow_right_dark");
         gtk_image_set_from_icon_name(image_all, "arrow_right_dark");
         gtk_image_set_from_icon_name(image_back, "arrow_left_dark");
-    }else{
+    }
+    else
+    {
         gtk_menu_button_set_icon_name(btn_more, "arrow_right");
         gtk_image_set_from_icon_name(image_all, "arrow_right");
         gtk_image_set_from_icon_name(image_back, "arrow_left");
@@ -103,12 +106,11 @@ void add_start(MainWin *win, GtkBox *box)
     ext_separator = (GtkWidget *)gtk_builder_get_object(startbuilder, "ext_separator");
     start_box = (GtkWidget *)gtk_builder_get_object(startbuilder, "start_box");
     search_entry = (GtkWidget *)gtk_builder_get_object(startbuilder, "search_entry");
+    gtk_widget_set_css_classes(start_menu, NULL);
+    gtk_widget_add_css_class(start_menu, "main_style");
     gtk_widget_add_css_class(prim_separator, "default_style");
     gtk_widget_add_css_class(ext_separator, "default_style");
-    gtk_widget_add_css_class(start_menu, "main_style");
-    gtk_widget_add_css_class(search_entry, "main_style");
     gtk_widget_add_css_class(start_box, "default_style");
-    // gtk_widget_add_css_class(menu_btn, "default_style");
     gtk_style_context_add_provider((prim_separator),
                                    main_win_get_style(win), G_MAXINT);
     gtk_style_context_add_provider((ext_separator),