Create color settings path if missing

Fixes https://gitlab.com/kicad/code/kicad/-/issues/5274

common/settings/settings_manager.cpp

@@ -573,6 +573,16 @@ wxString SETTINGS_MANAGER::GetColorSettingsPath()
     path.AssignDir( GetUserSettingsPath() );
     path.AppendDir( "colors" );
 
+    if( !path.DirExists() )
+    {
+        if( !wxMkdir( path.GetPath() ) )
+        {
+            wxLogTrace( traceSettings,
+                        "GetColorSettingsPath(): Path %s missing and could not be created!",
+                        path.GetPath() );
+        }
+    }
+
     return path.GetPath();
 }
 

include/settings/settings_manager.h

@@ -297,7 +297,7 @@ public:
     static bool IsSettingsPathValid( const wxString& aPath );
 
     /**
-     * Returns the path where color scheme files are stored
+     * Returns the path where color scheme files are stored; creating it if missing
      * (normally ./colors/ under the user settings path)
      */
     static wxString GetColorSettingsPath();