Disassembling Sublime Text
> draw_debug> A boolean that if true enables a special debugging text renderer. It seems to turn sections of the document either blue or red, and within the sections it turns tokens alternating light and dark shades of those colours. Note you have to set the setting to false to turn it off, not just delete it. These change sometimes when scrolling and editing but I can’t figure out when and why.That sounds exactly like GPU layers in web development - green is GPU accelerated, red is unaccelerated.