My initial list would be something like this:
Universal Formatting of Table Structure (row height, column width) with overrides for…
Individual Row Height (With Setting to use an alternate formatting every x number of Columns, or row number flow variable for conditional formatting) - (both Manual sizing and Automatic options based on font sizes: Narrow / Regular / Wide)
Individual Column Width (With Setting to use an alternate formatting every x number of Columns, or row number flow variable for conditional formatting) - (both Manual sizing and Automatic options based on font sizes: Narrow / Regular / Wide)
Universal Formatting of Grid Thickness and Background Color with overrides for…
Grid Thickness and Background Color by Columns (x2) (With Setting to use an alternate formatting every x number of Columns, or flow variable for conditional formatting)
Grid Thickness and Background Color by Rows (x2) (With Setting to use an alternate formatting every x number of rows / flow variable for conditional formatting)
Conditional Cell Level Coloring should already be handled by Highlighting.
Separate Universal Font Formatting (style / size / color) for both Headers and Data with overrides for…
Font (style / size / color) by Columns (x2) (With Setting to use an alternate formatting every x number of Columns, or flow variable for conditional formatting)
Font style / size / color by Rows (x2) (With Setting to use an alternate formatting every x number of rows / flow variable for conditional formatting)
Conditional Cell Level Font Formatting (style / size / color) via internal rules / flow variables.