From 922304f980151d1bc84947e967a60b79e7707763 Mon Sep 17 00:00:00 2001
From: Jon Evans <jon@craftyjon.com>
Date: Thu, 22 Oct 2020 21:21:27 -0400
Subject: [PATCH] Guard against missing theme in DIALOG_PLOT_SCHEMATIC

Fixes https://gitlab.com/kicad/code/kicad/-/issues/6124
---
 eeschema/dialogs/dialog_plot_schematic.cpp | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/eeschema/dialogs/dialog_plot_schematic.cpp b/eeschema/dialogs/dialog_plot_schematic.cpp
index cf60504124..3af9612eeb 100644
--- a/eeschema/dialogs/dialog_plot_schematic.cpp
+++ b/eeschema/dialogs/dialog_plot_schematic.cpp
@@ -310,6 +310,10 @@ void DIALOG_PLOT_SCHEMATIC::getPlotOptions( RENDER_SETTINGS* aSettings )
 COLOR_SETTINGS* DIALOG_PLOT_SCHEMATIC::getColorSettings()
 {
     int selection = m_colorTheme->GetSelection();
+
+    if( selection < 0 )
+        return Pgm().GetSettingsManager().GetColorSettings( "_builtin_default" );
+
     return static_cast<COLOR_SETTINGS*>( m_colorTheme->GetClientData( selection ) );
 }