Add xfwm theme

xfwm4/themerc

@@ -0,0 +1,26 @@
+#button_layout=O|HMC
+button_offset=2
+button_spacing=2
+
+full_width_title=true
+
+title_horizontal_offset=0
+title_vertical_offset_active=1
+title_vertical_offset_inactive=1
+title_shadow_active=false
+title_shadow_inactive=false
+
+active_text_color=#31363D
+active_text_shadow_color=#31363D
+inactive_text_color=#778085
+inactive_text_shadow_color=#778085
+
+shadow_delta_height=2
+shadow_delta_width=0
+shadow_delta_x=0
+shadow_delta_y=-4
+shadow_opacity=46
+
+show_frame_shadow=true
+show_popup_shadow=true
+show_app_icon=true