The other file from failing test:

 % raku -I. xt/gdimagestringft.rakutest
1..1
Total pixels changed: 172 with a maximum channel difference of 255
  in block  at /Users/liz/Github/COMMUNITY/GD-Raw/xt/gdtest.rakumod (gdtest) line 190
Writing actual to /var/folders/7_/ndrzv7y14fj0zxjx3fy0hfjm0000gn/T/EoIswiWQHl.png, expected to /var/folders/7_/ndrzv7y14fj0zxjx3fy0hfjm0000gn/T/idgnNLTCxJ.png

Author: lizmat