From d2aafff4a2beee8f911d57ed87fa35f53272d944 Mon Sep 17 00:00:00 2001
From: Stefan Csomor <csomor@advancedconcepts.ch>
Date: Sun, 17 Jun 2018 17:32:11 +0200
Subject: [PATCH] Second part of support for Dark Mode for wxRibbon, use flat
 appearance starting from 10.10

see #18146
---
 src/ribbon/art_aui.cpp | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/src/ribbon/art_aui.cpp b/src/ribbon/art_aui.cpp
index 356eec2dc7..83fb98d6e6 100644
--- a/src/ribbon/art_aui.cpp
+++ b/src/ribbon/art_aui.cpp
@@ -243,6 +243,11 @@ void wxRibbonAUIArtProvider::SetColourScheme(
     wxRibbonShiftLuminance(secondary_hsl, luminance ## f).ToRGB()
 
     m_tab_ctrl_background_colour = LikePrimary(0.9);
+#ifdef __WXMAC__
+    if ( wxPlatformInfo::Get().CheckOSVersion(10, 10 ) )
+        m_tab_ctrl_background_gradient_colour = m_tab_ctrl_background_colour;
+    else
+#endif
     m_tab_ctrl_background_gradient_colour = LikePrimary(1.7);
     m_tab_border_pen = LikePrimary(0.75);
 #ifdef __WXMAC__
@@ -251,9 +256,19 @@ void wxRibbonAUIArtProvider::SetColourScheme(
     m_tab_label_colour = LikePrimary(0.1);
 #endif
     m_tab_hover_background_top_colour =  primary_hsl.ToRGB();
+#ifdef __WXMAC__
+    if ( wxPlatformInfo::Get().CheckOSVersion(10, 10 ) )
+        m_tab_hover_background_top_gradient_colour = m_tab_hover_background_top_colour;
+    else
+#endif
     m_tab_hover_background_top_gradient_colour = LikePrimary(1.6);
     m_tab_hover_background_brush = m_tab_hover_background_top_colour;
     m_tab_active_background_colour = m_tab_ctrl_background_gradient_colour;
+#ifdef __WXMAC__
+    if ( wxPlatformInfo::Get().CheckOSVersion(10, 10 ) )
+        m_tab_active_background_gradient_colour = m_tab_active_background_colour;
+    else
+#endif
     m_tab_active_background_gradient_colour = primary_hsl.ToRGB();
     m_tab_active_top_background_brush = m_tab_active_background_colour;
     m_panel_label_colour = m_tab_label_colour;