[gimp] app: set a CSS name on GimpColorHistory so it can be individually themed

[Michael Natterer <mitch src gnome org>]

commit 0c555efb7df797efa249a7f9a828e162ace2d692
Author: Michael Natterer <mitch gimp org>
Date:   Sun Jun 10 16:13:48 2018 +0200

    app: set a CSS name on GimpColorHistory so it can be individually themed

 app/widgets/gimpcolorhistory.c | 6 ++++++
 1 file changed, 6 insertions(+)
---
diff --git a/app/widgets/gimpcolorhistory.c b/app/widgets/gimpcolorhistory.c
index a4def1a569..844b8535b8 100644
--- a/app/widgets/gimpcolorhistory.c
+++ b/app/widgets/gimpcolorhistory.c
@@ -108,6 +108,7 @@ gimp_color_history_class_init (GimpColorHistoryClass *klass)
                                                         GIMP_TYPE_CONTEXT,
                                                         GIMP_PARAM_READWRITE |
                                                         G_PARAM_CONSTRUCT));
+
   g_object_class_install_property (object_class, PROP_HISTORY_SIZE,
                                    g_param_spec_int ("history-size",
                                                      NULL, NULL,
@@ -116,6 +117,8 @@ gimp_color_history_class_init (GimpColorHistoryClass *klass)
                                                      GIMP_PARAM_READWRITE |
                                                      G_PARAM_CONSTRUCT));
 
+  gtk_widget_class_set_css_name (GTK_WIDGET_CLASS (klass), "GimpColorHistory");
+
   klass->color_selected = NULL;
 }
 
@@ -166,6 +169,7 @@ gimp_color_history_set_property (GObject      *object,
     case PROP_CONTEXT:
       history->context = g_value_get_object (value);
       break;
+
     case PROP_HISTORY_SIZE:
         {
           GtkWidget *button;
@@ -233,6 +237,7 @@ gimp_color_history_get_property (GObject    *object,
     case PROP_CONTEXT:
       g_value_set_object (value, history->context);
       break;
+
     case PROP_HISTORY_SIZE:
       g_value_set_int (value, history->history_size);
       break;
@@ -243,6 +248,7 @@ gimp_color_history_get_property (GObject    *object,
     }
 }
 
+
 /*  Public Functions  */
 
 GtkWidget *