Fix ScrollBar compatibility with FD5 themes...

Author: Meychi

PluginCore/ScintillaNet/ScintillaControl.cs

@@ -88,7 +88,9 @@ public void HandleEvent(Object sender, NotifyEvent e, HandlingPriority priority)
         {
             if (e.Type == EventType.ApplyTheme)
             {
-                Boolean enabled = PluginBase.MainForm.GetThemeFlag("ScrollBar.UseCustom", false);
+                Color color = PluginBase.MainForm.GetThemeColor("ScrollBar.ForeColor");
+                String value = PluginBase.MainForm.GetThemeValue("ScrollBar.UseCustom");
+                Boolean enabled = value == "true" || (value == null && color != Color.Empty);
                 if (enabled && !this.Controls.Contains(this.vScrollBar))
                 {
                     this.AddScrollBars(this);
@@ -136,7 +138,9 @@ private void InitScrollBars(ScintillaControl sender)
             sender.hScrollBar.Orientation = ScrollBarOrientation.Horizontal;
             sender.hScrollBar.ContextMenuStrip.Renderer = new DockPanelStripRenderer();
             sender.hScrollBar.Dock = DockStyle.Bottom;
-            if (PluginBase.MainForm.GetThemeFlag("ScrollBar.UseCustom", false))
+            Color color = PluginBase.MainForm.GetThemeColor("ScrollBar.ForeColor");
+            String value = PluginBase.MainForm.GetThemeValue("ScrollBar.UseCustom");
+            if (value == "true" || (value == null && color != Color.Empty))
             {
                 sender.AddScrollBars(sender);
                 sender.UpdateScrollBarTheme(sender);