make 'automatic' the default

Author: carlos-zamora

src/cascadia/TerminalSettingsModel/MTSMSettings.h

@@ -136,7 +136,7 @@ Author(s):
     X(ConvergedAlignment, BackgroundImageAlignment, "backgroundImageAlignment", ConvergedAlignment::Horizontal_Center | ConvergedAlignment::Vertical_Center)       \
     X(hstring, BackgroundImagePath, "backgroundImage")                                                                                                             \
     X(Model::IntenseStyle, IntenseTextStyle, "intenseTextStyle", Model::IntenseStyle::Bright)                                                                      \
-    X(Core::AdjustTextMode, AdjustIndistinguishableColors, "adjustIndistinguishableColors", Core::AdjustTextMode::Never)                                           \
+    X(Core::AdjustTextMode, AdjustIndistinguishableColors, "adjustIndistinguishableColors", Core::AdjustTextMode::Automatic)                                       \
     X(bool, UseAcrylic, "useAcrylic", false)
 
 // Intentionally omitted Appearance settings: