diff --git a/terminatorlib/terminal.py b/terminatorlib/terminal.py
index 0ee4851d..fa8d7a1b 100755
--- a/terminatorlib/terminal.py
+++ b/terminatorlib/terminal.py
@@ -734,6 +734,16 @@ class Terminal(Gtk.VBox):
         else:
             self.vte.set_colors(self.fgcolor_inactive, self.bgcolor,
                                 self.palette_inactive)
+        profiles = self.config.base.profiles
+        terminal_box_style_context = self.terminalbox.get_style_context()
+        for profile in profiles.keys():
+            munged_profile = "terminator-profile-%s" % (
+                "".join([c if c.isalnum() else "-" for c in profile]))
+            if terminal_box_style_context.has_class(munged_profile):
+                terminal_box_style_context.remove_class(munged_profile)
+        munged_profile = "".join([c if c.isalnum() else "-" for c in self.get_profile()])
+        css_class_name = "terminator-profile-%s" % (munged_profile)
+        terminal_box_style_context.add_class(css_class_name)
         self.set_cursor_color()
         self.vte.set_cursor_shape(getattr(Vte.CursorShape,
                                           self.config['cursor_shape'].upper()));
diff --git a/terminatorlib/terminator.py b/terminatorlib/terminator.py
index 2fc045a3..a728c0a2 100755
--- a/terminatorlib/terminator.py
+++ b/terminatorlib/terminator.py
@@ -5,7 +5,9 @@
 
 import copy
 import os
-from gi.repository import Gtk, Gdk
+import gi
+gi.require_version('Vte', '2.91')
+from gi.repository import Gtk, Gdk, Vte
 
 import borg
 from borg import Borg
@@ -404,6 +406,30 @@ class Terminator(Borg):
                 background-color: transparent; }
             """
 
+        # Add per profile snippets for setting the background of the HBox
+        template = """
+            .terminator-profile-%s {
+                background-color: alpha(%s, %s); }
+            """
+        profiles = self.config.base.profiles
+        for profile in profiles.keys():
+            if profiles[profile]['use_theme_colors']:
+                # FIXME: This dummy vte has different system colors to the real ones
+                bgcolor = Vte.Terminal().get_style_context().get_background_color(Gtk.StateType.NORMAL)
+                bgcolor = "#{0:02x}{1:02x}{2:02x}".format(int(bgcolor.red  * 255),
+                                                          int(bgcolor.green * 255),
+                                                          int(bgcolor.blue * 255))
+            else:
+                bgcolor = Gdk.RGBA()
+                bgcolor = profiles[profile]['background_color']
+            if profiles[profile]['background_type'] == 'transparent':
+                bgalpha = profiles[profile]['background_darkness']
+            else:
+                bgalpha = "1"
+
+            munged_profile = "".join([c if c.isalnum() else "-" for c in profile])
+            css += template % (munged_profile, bgcolor, bgalpha)
+
         style_provider = Gtk.CssProvider()
         style_provider.load_from_data(css)
         self.style_providers.append(style_provider)
diff --git a/terminatorlib/themes/Ambiance/gtk-3.0/apps/terminator.css b/terminatorlib/themes/Ambiance/gtk-3.0/apps/terminator.css
new file mode 100644
index 00000000..36520d33
--- /dev/null
+++ b/terminatorlib/themes/Ambiance/gtk-3.0/apps/terminator.css
@@ -0,0 +1,6 @@
+.terminator-terminal-window .scrollbar.dragging:not(.slider),
+.terminator-terminal-window .scrollbar:hover:not(.slider),
+.terminator-terminal-window .scrollbar:not(.slider) {
+  background-color: alpha(@dark_bg_color,0);
+}
+