Centering figures in TeX pdf (not working)

[162348]

Description

Consider the following minimal example:

---
title: "Including svg images"
author: "Tester"
format:
  pdf:
    fig-format: svg
    fig-align: center
    keep-tex: true
---

```{r}
coplot(len ~ dose | supp, data = ToothGrowth, panel = panel.smooth,
       xlab = "ToothGrowth data: length vs dose, given type of supplement")
```

The output pdf contains one figure without being centered, although I declared fig-align: center in the header.

To make my point clearer, let us take a closer look. The figure is outputted by the corresponding TeX command, which is

\includegraphics{test_files/mediabag/test_files/figure-pdf/unnamed-chunk-1-1.pdf}

Adding #| fig-align: center at the beginning of the cell will wrap the command with the center environment:

\begin{center}
\includegraphics{test_files/mediabag/test_files/figure-pdf/unnamed-chunk-1-1.pdf}
\end{center}

However, this behaviour should already have been triggered by the global header YAML option.

Am I missing something here? Thanks in advance.

Additional Information

Quarto: 1.6.39
TinyTeX: v2024.12
MacOS: 15.1.1（24B91）

[mcanouil]

• global fig-align rule not respected by images without a caption #6509

[162348]

I'm sorry that I didn't find that issue already published.

Happy to find out this is behaviour somewhat by design:

A "figure without a caption" is not a figure; it's an image.

[mcanouil]

I'm sorry that I didn't find that issue already published.

All is fine. 😉