(Backend specific) global theming #73
Description
Style settings for each table type are currently hardcoded, as are general properties such as footnote fontsize etc. It would be better if these were adjustable, but for convenience it doesn't seem like those settings should only be passed with a function argument. In a long script, every table call would then need the same argument added for consistency.
Instead, it would probably make sense to use scoped values to store some structure that holds the style information. This structure could either be updated at top-level or temporarily within a task, so that threaded creation of tables still works if desired.