Requiring control over different font size, baseline shift, and line height for different scripts

[mostafah]

Topic Font and Typographical considerations already mentions “font size considerations for mixed-script text,” i.e., being able to select different font sizes for different scripts when mixing them.

My suggestion is that font size is not the only property that need that level of control for different scripts: other text-related properties like baseline shift, line height, and letterspace require different values for mixed scripts too.

This issue also needs more thought about how we want to say these different properties should be applied: per script or per font?