Set basic font style to a paragraph

[connium]

Is your feature request related to a problem? Please describe.
On a paragraph it should be possible to set the font style so that different paragraphs can have different styles.

Describe the solution you'd like
There should be a font style defining multiple properties:

• Set font size in pt
• Set font style (e.g. regular, bold, italic, ...)
• Set font color as hex value #rrggbb

Additional context
See style:text-properties in the OASIS Open Document Format.