[gnome-builder/wip/gtk4-port] libide/gui: allow checkimage for radios too

[Christian Hergert <chergert src gnome org>]

commit 1572b95b195d62285573978886f72817b3c56b65
Author: Christian Hergert <chergert redhat com>
Date:   Tue May 10 11:44:24 2022 -0700

    libide/gui: allow checkimage for radios too
    
    They can be used in actions bound to checkbutton so we need to cover that
    case as well.

 src/libide/gui/style.css | 2 ++
 1 file changed, 2 insertions(+)
---
diff --git a/src/libide/gui/style.css b/src/libide/gui/style.css
index 2e1e5be90..80e50cb9d 100644
--- a/src/libide/gui/style.css
+++ b/src/libide/gui/style.css
@@ -9,6 +9,7 @@ window.preferences list.boxed-list.style-variant button {
 window.preferences list.boxed-list.style-variant button:checked {
   border-color: @theme_selected_bg_color;
 }
+.checkimage radio,
 .checkimage check {
   background: none;
   outline: none;
@@ -18,6 +19,7 @@ window.preferences list.boxed-list.style-variant button:checked {
   -gtk-icon-source: none;
   -gtk-icon-size: 18px;
 }
+.checkimage radio:checked,
 .checkimage check:checked {
   -gtk-icon-source: -gtk-icontheme('object-select-symbolic');
 }