Ok, I created a better reprex. Here, the bookdown consists of a single index.Rmd file:
---
title: "A Minimal Book Example"
author: "John Doe"
date: "`r Sys.Date()`"
description: "A simple bookdown using {thematic}"
site: bookdown::bookdown_site
documentclass: book
output:
bookdown::bs4_book:
theme:
bootswatch: cyborg
---
# About
```{r setup, include = FALSE}
thematic::thematic_rmd()
```
Here a plot:
```{r}
plot(pressure)
```
The output looks like this:
And yes, there are actually warnings that I have missed before:
Warning messages:
1: thematic was unable to resolve `bg='auto'`. Try providing an actual color (or `NA`) to the `bg` argument of `thematic_on()`. By the way, 'auto' is only officially supported in `shiny::renderPlot()`, some rmarkdown scenarios (specifically, `html_document()` with `theme!=NULL`), in RStudio, or if `auto_config_set()` is used.
2: thematic was unable to resolve `fg='auto'`. Try providing an actual color (or `NA`) to the `fg` argument of `thematic_on()`. By the way, 'auto' is only officially supported in `shiny::renderPlot()`, some rmarkdown scenarios (specifically, `html_document()` with `theme!=NULL`), in RStudio, or if `auto_config_set()` is used.
3: thematic was unable to resolve `accent='auto'`. Try providing an actual color (or `NA`) to the `accent` argument of `thematic_on()`. By the way, 'auto' is only officially supported in `shiny::renderPlot()`, some rmarkdown scenarios (specifically, `html_document()` with `theme!=NULL`), in RStudio, or if `auto_config_set()` is used.
I have opened a feature request.
Thanks!
Edit: Added missing line of code.