From a6ccc45d5bdef7345389dd96358883f123b9e5fc Mon Sep 17 00:00:00 2001
From: David Capello <david@igara.com>
Date: Mon, 15 May 2023 17:31:46 -0300
Subject: [PATCH] Fix crash calling app.command.LoadPalette() when the UI is
 not available (fix #3847)

E.g.

  aseprite -b -script load.lua

When load.lua is:

  app.command.LoadPalette()

Was crashing the program.
---
 src/app/commands/cmd_load_palette.cpp | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/app/commands/cmd_load_palette.cpp b/src/app/commands/cmd_load_palette.cpp
index fb46d1a15..cb6136e08 100644
--- a/src/app/commands/cmd_load_palette.cpp
+++ b/src/app/commands/cmd_load_palette.cpp
@@ -1,4 +1,5 @@
 // Aseprite
+// Copyright (C) 2023  Igara Studio S.A.
 // Copyright (C) 2001-2018  David Capello
 //
 // This program is distributed under the terms of
@@ -62,7 +63,7 @@ void LoadPaletteCommand::onExecute(Context* context)
     filename = m_filename;
   }
 #ifdef ENABLE_UI
-  else {
+  else if (context->isUIAvailable()) {
     base::paths exts = get_readable_palette_extensions();
     base::paths filenames;
     if (app::show_file_selector(