quarto-pyodide extension (coatless/pyodide v0.0.1-dev.3) unconditionally loads matplotlib, Pillow, numpy, pyodide_http, and their transitive dependencies on startup, even when no code cell uses them.
Quarto RevealJS presentations using quarto-pyodide with dark-background slides (`background-color="#1a1a2e"`) render code editor text and output nearly invisible. RevealJS adds `.has-dark-background`