Changing the line spacing only for the main body paragraphs (not tables too)

[eeholmes]

If you use the classoption to change the linespacing, it changes the spacing of tables too. How to you limit the scope?

eg. in _quarto.yml you change to onehalfspacing with

format:
  quarto-thesis-pdf: 
    urlcolor: red
    toclinkcolor: black
    toc-depth: 2
    classoption: [onehalfspacing, oneside]

[eeholmes]

Add these commands to the header to limit the scope. from this issue #1 from @johnghill

format:
  quarto-thesis-pdf: 
    urlcolor: red
    toclinkcolor: black
    toc-depth: 2
    classoption: [onehalfspacing, oneside]
    header-includes: |
      \usepackage{etoolbox}
      \AtBeginEnvironment{Shaded}{\singlespace}
      \AtBeginEnvironment{tabular}{\singlespacing}
      \AtBeginEnvironment{lltable}{\singlespacing}
      \AtBeginEnvironment{longtable}{\singlespacing}
      \AtBeginEnvironment{tablenotes}{\doublespacing}
      \captionsetup[table]{font={stretch=1.5}}
      \captionsetup[figure]{font={stretch=1.5}}