sphinx-doc/sphinx

Support dark mode for builtin themes

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#13,742 opened on Jul 23, 2025

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 (5 comments) (2 reactions) (0 assignees)Python (1,985 forks)batch import
good first issuehelp wantedhtml themetype:proposal

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Description

It doesn't look like any/most of the provided themes support dark mode. That's a real bummer since many similar generator themes like the default MkDocs theme does support dark mode.

Contributor guide

Research direction
Examine the builtin themes' CSS to see if they already use CSS variables; then implement a dark mode variant by toggling CSS custom properties.
Tech stack
python
Domain
documentationfrontend
Issue type
Feature
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
1-3 hours
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
Active
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
Clear
Prerequisites
GitPython
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
70