Captured with Quicktime.

Processed with:

$ ffmpeg -i wordy.mov -s 700x284 -pix_fmt rgb24 -vf "lutyuv=y=val*1.3" -r 10 -f gif - | \
  gifsicle --optimize=3 --delay=6 --crop 0,0+700x283 > ~/Desktop/out.gif