Could you increase the contrast of the call out "speech boxes" for each step in the GT? Even a solid color outline would be helpful. In almost all SN Themes, you can't really see the arrows pointing to the element being explained.
Great idea John. Not the first time I've heard this request either. I invite you to open an enhancement request! Our product managers DO listen. community.servicenow.com/community?id=community_blog&sys_id=e8bde6a9dbd0dbc01dcaf3231f961992
Terrible! Some good information but the presenter is all over the place. He himself keeps stumbling on things he doesn't know the answer to. "For some reason... this happens." "I'm not sure, but I think this works this way." "Not sure what I did here." "Oh wow! Look at that. I didn't know that would work." "Let's test this and see if it works."