Perhaps under 1.5 - benefit of doing this. WC a benefit of separating content from presentation is that if it is not high contrast enough for someone they could change it to their preferences, and that consistent presentation uses good presentation which includes high contrast. LGR Slippery slope. We're defining accessible. LS Then need to define accessible presentation.
Some people have difficulty with fonts that are irregular.
It can be difficult to process. Opens that door. That is a door that Jonathan Chetwynd and Anne Pemberton have been asking us to open for a while. Or we could split into 2 checkpoints. If the default presentation can be overriden then the accessible presentation, then providing accessible is not highest priority.