A patch for swatch echo action to suppress uninitialized string warnings

swatch.patch

--- Actions.pm.orig     2019-06-10 13:45:42.577613000 +0900
+++ Actions.pm  2019-06-10 13:52:49.789538000 +0900
@@ -62,7 +62,8 @@
             and $args{'THRESHOLDING'} eq 'on'
             and not &Swatch::Threshold::threshold(%args));

-  if (${$args{'MODES'}}[0] =~ /^normal$/i) { # for backward compatability
+  if (${$args{'MODES'}}[0] =~ /^normal$/i # for backward compatability
+      || @{$args{'MODES'}} < 1 ){
     print "$args{'MESSAGE'}\n";
   } else {
     print colored("$args{'MESSAGE'}\n", @{$args{'MODES'}});