TTML2 features for inclusion in IMSC2

The following lists TTML2 features currently intended for inclusion in IMSC2 (albeit perhaps in a constrained fashion). IMSC2 is intended to be a proper subset of TTML2. All IMSC1 features (including IMSC 1.0.1 features) are intended to be supported by IMSC2.

Japanese Script

fontShear

https://www.w3.org/TR/ttml2/#style-attribute-fontShear

ruby

https://www.w3.org/TR/ttml2/#style-attribute-ruby

rubyAlign

https://www.w3.org/TR/ttml2/#style-attribute-rubyAlign

rubyOverhang

https://www.w3.org/TR/ttml2/#style-attribute-rubyOverhang

rubyPosition

https://www.w3.org/TR/ttml2/#style-attribute-rubyPosition

rubyReserve

https://www.w3.org/TR/ttml2/#style-attribute-rubyReserve

textEmphasis

https://www.w3.org/TR/ttml2/#style-attribute-textEmphasis

textOrientation

https://www.w3.org/TR/ttml2/#style-attribute-textOrientation

fontKerning

https://www.w3.org/TR/ttml2/#style-attribute-fontKerning

textCombine

https://www.w3.org/TR/ttml2/#style-attribute-textCombine

Stereoscopic

disparity

https://www.w3.org/TR/ttml2/#style-attribute-disparity

Text Styling

textShadow

https://www.w3.org/TR/ttml2/#style-attribute-textShadow

Positioning

Positioning of individual <p> and <div>

https://www.w3.org/TR/ttml2/#style-attribute-origin

Alternate position specification

https://www.w3.org/TR/ttml2/#style-attribute-position

Miscellaneous

Redefine initial values

https://www.w3.org/TR/ttml2/#styling-vocabulary-initial