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Fix notebook text contrast on GitHub Pages #4

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Merged
B67687 merged 1 commit into from
Apr 9, 2026
Merged

Fix notebook text contrast on GitHub Pages #4

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58 changes: 58 additions & 0 deletions build_pages.py
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Original file line number Diff line number Diff line change
Expand Up @@ -32,6 +32,62 @@
".yaml",
}

NOTEBOOK_THEME_OVERRIDES = """
<style>
body.jp-Notebook {
background: #f6f8fa;
color: #1f2328;
margin: 0 auto;
padding: 24px;
}

body.jp-Notebook {
--jp-ui-font-color0: rgba(31, 35, 40, 1);
--jp-ui-font-color1: rgba(31, 35, 40, 0.92);
--jp-ui-font-color2: rgba(31, 35, 40, 0.72);
--jp-ui-font-color3: rgba(31, 35, 40, 0.56);
--jp-content-font-color0: rgba(31, 35, 40, 1);
--jp-content-font-color1: rgba(31, 35, 40, 0.92);
--jp-content-font-color2: rgba(31, 35, 40, 0.72);
--jp-content-font-color3: rgba(31, 35, 40, 0.56);
--jp-layout-color0: #ffffff;
--jp-layout-color1: #ffffff;
--jp-layout-color2: #f6f8fa;
--jp-rendermime-table-row-background: #f6f8fa;
--jp-rendermime-table-row-hover-background: #eaeef2;
--jp-cell-editor-background: #ffffff;
--jp-cell-editor-active-background: #ffffff;
--jp-cell-editor-border-color: #d0d7de;
--jp-cell-editor-active-border-color: #0969da;
}

body.jp-Notebook .jp-Cell,
body.jp-Notebook .jp-InputArea,
body.jp-Notebook .jp-OutputArea-output,
body.jp-Notebook .jp-RenderedHTMLCommon,
body.jp-Notebook .jp-RenderedMarkdown,
body.jp-Notebook .jp-RenderedText,
body.jp-Notebook .jp-RenderedLatex {
color: #1f2328;
}

body.jp-Notebook .jp-InputArea-editor,
body.jp-Notebook .jp-CodeMirrorEditor,
body.jp-Notebook .highlight,
body.jp-Notebook .jp-RenderedHTMLCommon pre,
body.jp-Notebook .jp-RenderedText pre {
background: #ffffff;
color: #1f2328;
}

body.jp-Notebook .jp-RenderedText pre .ansi-white-fg,
body.jp-Notebook .jp-RenderedText pre .ansi-white-intense-fg,
body.jp-Notebook .jp-RenderedText pre .ansi-default-inverse-fg {
color: #1f2328;
}
</style>
"""


def should_skip(path: Path) -> bool:
return any(part in EXCLUDED_PARTS for part in path.parts)
Expand Down Expand Up @@ -77,6 +133,8 @@ def rewrite_notebook_links(text: str) -> str:
def rewrite_html_links(html_path: Path) -> None:
content = html_path.read_text(encoding="utf-8")
updated = rewrite_notebook_links(content)
if NOTEBOOK_THEME_OVERRIDES not in updated and "</head>" in updated:
updated = updated.replace("</head>", f"{NOTEBOOK_THEME_OVERRIDES}\n</head>", 1)
if updated != content:
html_path.write_text(updated, encoding="utf-8")

Expand Down
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