How to customize the style of tables in PDF

[OasisPioneer]

• How to center text in a table?

[gastmaier]

you mean using the latex bulder?
check the latex output first and see which information the builder already propagates.
list table and table directives have an width option. check if latex builder uses this info.
https://sphinx-nefertiti.readthedocs.io/latest/users-guide/components/tables-rst.html#table-directive

[OasisPioneer]

It didn't work; the text is still not centered.

[OasisPioneer]

latex_elements = {
"preamble": r"""
\usepackage{array}
\newcolumntype{T}{C}
"""
}