VS Code Penumbra Light doesn't display whitespaces

[c10l]

The light theme's colour for whitespace characters (enabled with the editor.renderWhitespace option in settings.json) is the same as the background:

Example:

Penumbra Dark Contrast++ for comparison:

The other Dark themes also display the characters albeit with less contrast, as expected.

[Arnaud Pigné]

I assume that you use vscode.
What’s your looking for is the key editorWhitespace.foreground, which is already set in the theme:
https://github.com/nealmckee/penumbra_vscode/blob/959f17dd8d568b2dfe8a7673e0f0549ec1f0b398/themes/penumbra-light-color-theme.json#L1923C6-L1923C22
But maybe the alpha part of the hex is not enough opaque for you, so you can override it in your settings.json like that:

"workbench.colorCustomizations": {
  "[Penumbra Light]": {
    "editorWhitespace.foreground": "#F2E6D4FF"
  }
},