Table and Figure Caption Formatting

[TimOliverMaier]

Hello!

I am currently working on my thesis in a Quarto book project. (Kudos to the maintainers I really like the project!)

For my work, I would like to have a 1.5 space between lines in the paragraphs, but not in the table and figure captions. It further would be a great bonus to have the Figure X or Table X bold.
I tried to address the captions individually by including the package caption but this does not change anything.
Here is my current yml file:

project:
  type: book

book:
  title: "my title"
  subtitle: "Master's Thesis"
  author: "Tim Maier"
  date: "7/21/2023"
  date-format: "DD.MM.YYYY"
  chapters:
    - index.qmd
    - introduction.qmd
    - methods.qmd
    - resultsanddiscussion.qmd
    - conclusionandoutlook.qmd
    - declaration.qmd
    - references.qmd

bibliography: references.bib

format:
  html:
    theme: cosmo
  pdf:
    keep-tex: true
    include-in-header:
      - text: |
          \usepackage{noto-serif}
          \usepackage[labelfont={bf}]{caption}
    fig-cap-location: margin
    tbl-cap-location: margin
    papersize: A4
    documentclass: report
    geometry:
      - lmargin=20mm
      - rmargin=50mm
      - marginparwidth=35mm
    template-partials:
      - before-body.tex
    linestretch: 1.5

Do you have any Ideas on how I could configure my captions individually?

EDIT:

I noticed that using the caption package works on the figure and table captions if they are not positioned in the margin. Does anybody have ideas on how to address the margin captions?

Best regards,
Tim

[mcanouil]

Without an actual working example, it's hard to answer.
For HTML, you can play around using CSS. To know which selector to target, use your favourite browser "developer mode" (right click inspect and/or usually F11).

For LaTeX, you can add keep-tex: true to your frontmatter, to fiddle the LaTeX file directly and see how you can do it.
Unfortunately, it's more of a LaTeX question than a Quarto question, so, you'll likely get an answer on LaTeX "help platforms".

[TimOliverMaier]

Thank you for your answer @mcanouil . I see that there is no obvious way to do it, that I missed.
For anyone landing here in the future, I would like to add, that for the pdf output placing a \linespread{1}
before the table (in the .qmd file) fixed the line-spacing issue for me.