Implement a fallback `html_theme` #388

	name: 'PR: esbonio'
	on:
	pull_request:
	branches:
	- develop
	- release
	paths:
	- 'lib/esbonio/**'

	jobs:
	build:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v4

	- name: Setup Python
	uses: actions/setup-python@v5
	with:
	python-version: "3.11"

	- name: pip cache
	uses: actions/cache@v4
	with:
	path: ~/.cache/pip
	key: ${{ runner.os }}-lsp-pr-pip-deps-3.11

	- run: \|
	python --version
	python -m pip install --upgrade pip
	python -m pip install --upgrade hatch towncrier
	name: Setup Environment

	- run: \|
	set -e
	./scripts/make_release.py lsp
	name: Set Version

	- uses: hynek/build-and-inspect-python-package@v2
	with:
	path: lib/esbonio

	test:
	name: "Python v${{ matrix.python-version }} -- ${{ matrix.os }}"
	runs-on: ${{ matrix.os }}
	timeout-minutes: 20
	strategy:
	fail-fast: false
	matrix:
	python-version: ["3.9", "3.10", "3.11", "3.12", "3.13"]
	os: [ubuntu-latest, windows-latest]

	steps:
	- uses: actions/checkout@v4

	- name: Setup Python ${{ matrix.python-version }}
	uses: actions/setup-python@v5
	with:
	python-version: ${{ matrix.python-version }}
	allow-prereleases: true

	- name: pip cache
	uses: actions/cache@v4
	with:
	path: ~/.cache/pip
	key: ${{ runner.os }}-lsp-pr-pip-deps-${{ matrix.python-version }}

	- run: \|
	python --version
	python -m pip install --upgrade hatch
	name: Setup Environment

	- run: \|
	cd lib/esbonio

	hatch test -i py=${{ matrix.python-version }}
	name: Run Tests

Provide feedback