LibGUI: Split OpacitySlider into vertical and horizontal helper classes

1 files changed, 2 insertions, 0 deletions

diff --git a/Userland/Libraries/LibGUI/Forward.h b/Userland/Libraries/LibGUI/Forward.h
index 0ad380d344..b6b5fd6786 100644
--- a/Userland/Libraries/LibGUI/Forward.h
+++ b/Userland/Libraries/LibGUI/Forward.h
@@ -33,6 +33,7 @@ class Frame;
 class GroupBox;
 class HeaderView;
 class HorizontalBoxLayout;
+class HorizontalOpacitySlider;
 class HorizontalSlider;
 class Icon;
 class IconView;
@@ -88,6 +89,7 @@ class TreeView;
 class ValueSlider;
 class Variant;
 class VerticalBoxLayout;
+class VerticalOpacitySlider;
 class VerticalSlider;
 class WMEvent;
 class Widget;