added background color and text color to tab label

guake/boxes.py

@@ -122,7 +122,7 @@ def _add_search_box(self):
         self.search_frame.get_style_context().add_class("background")
         css_provider = Gtk.CssProvider()
         css_provider.load_from_data(
-            b"#search-frame border {" b"    padding: 5px 5px 5px 5px;" b"    border: none;" b"}"
+            """#search-frame border { padding: 5px 5px 5px 5px; border: none;} notebook tab {padding:5px 5px 0px 5px; margin: 0px 0px 0px 0px;}"""
         )
         Gtk.StyleContext.add_provider_for_screen(
             Gdk.Screen.get_default(),
@@ -711,6 +711,20 @@ def on_rename(self, user_data):
 
         self.grab_focus_on_last_focused_terminal()
 
+    @save_tabs_when_changed
+    def on_tab_color_change(self, user_data):
+        HidePrevention(self.get_toplevel()).prevent()
+        dialog = Gtk.ColorChooserDialog(_("Select Color"), self.notebook.guake.window)
+        if dialog.run() == Gtk.ResponseType.OK:
+            color = dialog.get_rgba()
+            dialog.destroy()
+            page_num = self.notebook.find_tab_index_by_label(self)
+            self.notebook.color_page(page_num, color, True)
+        HidePrevention(self.get_toplevel()).allow()
+        self.grab_focus_on_last_focused_terminal()
+
+
+
     @save_tabs_when_changed
     def on_reset_custom_colors(self, user_data):
         HidePrevention(self.get_toplevel()).prevent()

guake/menus.py

@@ -25,6 +25,17 @@ def mk_tab_context_menu(callback_object):
     mi_reset_custom_colors = Gtk.MenuItem(_("Reset custom colors"))
     mi_reset_custom_colors.connect("activate", callback_object.on_reset_custom_colors)
     menu.add(mi_reset_custom_colors)
+
+    menu.add(Gtk.SeparatorMenuItem())
+
+    mi_change_tab_colors = Gtk.MenuItem(_("Change tab colors"))
+    mi_change_tab_colors.connect("activate", callback_object.on_tab_color_change)
+    menu.add(mi_change_tab_colors)
+    menu.add(Gtk.SeparatorMenuItem())
+
+
+
+
     mi_close = Gtk.MenuItem(_("Close"))
     mi_close.connect("activate", callback_object.on_close)
     menu.add(mi_close)

guake/notebook.py

@@ -172,7 +172,7 @@ def on_tab_selection(self, user_data):
         # ref: epiphany
         css_provider = Gtk.CssProvider()
         css_provider.load_from_data(
-            b"#popover-window list { border-style: none; background-color: transparent; }"
+            b"#popover-window list { border-style: none; background-color: transparent; }" 
         )
         Gtk.StyleContext.add_provider_for_screen(
             Gdk.Screen.get_default(),
@@ -376,6 +376,11 @@ def new_page(self, directory=None, position=None, empty=False, open_tab_cwd=Fals
             root_terminal_box, None, position if position is not None else -1
         )
         self.set_tab_reorderable(root_terminal_box, True)
+
+
+
+
+
         self.show_all()  # needed to show newly added tabs and pages
         # this is needed because self.window.show_all() results in showing every
         # thing which includes the scrollbar too
@@ -472,6 +477,27 @@ def rename_page(self, page_index, new_text, user_set=False):
             if user_set:
                 setattr(page, "custom_label_set", new_text != "-")
 
+    def color_page(self, page_index, color, user_set=False):
+        page = self.get_nth_page(page_index)
+        #page.set_name("tab-label")
+        label = self.get_tab_label(page)
+        text_color =  '#FFFFFF' if  (color.red * 0.299 + color.green * 0.587 + color.blue * 0.114) > 186 else '#000000'
+        label.set_name("tab-label" + str(page_index))
+        css =  """notebook #tab-label{page_index} {{border:none; background-color: rgba({red}, {green}, {blue}, 1);  color: {text_color}; }}""".format(page_index=page_index, 
+                                                                                                                                                       red=color.red *255, green=color.green*255, blue=color.blue*255,
+                                                                                                                                                         text_color=text_color
+                                                                                                                                                       ).encode()
+
+        css_provider = Gtk.CssProvider()
+        css_provider.load_from_data(css)
+
+        Gtk.StyleContext().add_provider_for_screen(
+            Gdk.Screen.get_default(),
+            css_provider,
+            Gtk.STYLE_PROVIDER_PRIORITY_APPLICATION,
+        )
+
+
     def find_tab_index_by_label(self, eventbox):
         for index, tab_eventbox in enumerate(self.iter_tabs()):
             if eventbox is tab_eventbox: