[css-typed-om] Why the no-arg CSSTransformValue() constructor?

[tabatkins]

Title says it all - what's the purpose of the no-arguments CSSTransformValue constructor? You can't obtain an empty CSSTransformValue from CSS, and you can't append to a CSSTransformValue after-the-fact, so starting with an empty one doesn't help you.

[tabatkins]

Talking with Shane gave the answer - because the none keyword is exactly equivalent to specifying an identity matrix, we'd like to just represent it as an empty CSSTransformValue. The definition of .matrix I wrote down already works for this degenerate case, returning the identity matrix, so 👍