As in many other dialogs, Libreoffice provides a lot of functionality for tweaking the hell out of areas taken up by shapes, charts, frames, etc. You can have a solid background color, with or without transparency/opacity, you
Tables are one the most frequently used objects in documents. If you want to present data in a structured way with, for instance, small gridlines, a nice header, right aligned numbers, and highlighted totals- that’s a table.