[gimp/gimp-2-10] themes: fix arrow color of menu items with a submenu

[Ell <ell src gnome org>]

commit 0a900542be68a5a5c1b0947824559162829dec53
Author: Ell <ell_se yahoo com>
Date:   Fri Sep 21 04:01:58 2018 -0400

    themes: fix arrow color of menu items with a submenu
    
    Commit 6484e91f8265432f744c85e297262f64065427e3 broke the arrow
    color of menu items with a submenu in the Dark theme; it seems to
    have always been broken in the Light and Gray themes.
    
    Fix this, by applying the default style to the GtkMenuItem class.

 themes/Dark/gtkrc  | 1 +
 themes/Gray/gtkrc  | 1 +
 themes/Light/gtkrc | 1 +
 3 files changed, 3 insertions(+)
---
diff --git a/themes/Dark/gtkrc b/themes/Dark/gtkrc
index 22965c1433..30d19118b9 100644
--- a/themes/Dark/gtkrc
+++ b/themes/Dark/gtkrc
@@ -315,6 +315,7 @@ style "gimp-dark-default-style"
 }
 
 class "GtkWidget" style "gimp-dark-default-style"
+class "GtkMenuItem" style "gimp-dark-default-style"
 
 ###########################################################
 
diff --git a/themes/Gray/gtkrc b/themes/Gray/gtkrc
index 9d68b33a4f..86c6ef0b09 100644
--- a/themes/Gray/gtkrc
+++ b/themes/Gray/gtkrc
@@ -315,6 +315,7 @@ style "sogg-default-style"
 }
 
 class "GtkWidget" style "sogg-default-style"
+class "GtkMenuItem" style "sogg-default-style"
 
 ###########################################################
 
diff --git a/themes/Light/gtkrc b/themes/Light/gtkrc
index 0e48691dcb..03e9591c3e 100644
--- a/themes/Light/gtkrc
+++ b/themes/Light/gtkrc
@@ -315,6 +315,7 @@ style "tlsog-default-style"
 }
 
 class "GtkWidget" style "tlsog-default-style"
+class "GtkMenuItem" style "tlsog-default-style"
 
 ###########################################################