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Some packages (the Haddock documentation for example Data.String.Utils) have a menubar that includes a "Style" menu that allows choosing among styles used to display the documentation:

enter image description here

How do I get this menu in the documentation for my own packages? What setting should I use to include it, and how do I specify which styles are offered?

I've tried things like

haddock
  -- ...
  css: /path/to/mystuff.css, Default, Ocean
  -- ...

and 

haddock

  -- ...
  css: Default
  css: Ocean
  css: /path/to/mystuff.css
  -- ...

In my ~/.cabal/config; but the former fails and the latter just formats using the last-listed css entry, with no "Style" menu.

Towkir
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orome
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1 Answers1

1

This feature is implemented with the --theme flag to Haddock: https://haskell-haddock.readthedocs.io/en/latest/invoking.html#cmdoption-theme

Ari Fordsham
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  • That seems to do the trick locally, but how do I enforce that on [Hackage](https://hackage.haskell.org/package/crypto-enigma-0.1.1.6/docs/Crypto-Enigma.html) and [Stackage](https://www.stackage.org/haddock/lts-16.15/crypto-enigma-0.1.1.6/Crypto-Enigma.html)? I don't see where I can specify `--theme` for either. – orome Sep 21 '20 at 16:32