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Custom OG image renderer with pg_orbit branding

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Replace generic blackAndWhite preset with custom renderer using
site colors (#0a0e17 dark background, #f59e0b amber accents),
decorative orbital rings watermark, branded footer with pg_orbit
name and site URL. Inter font in 400/700 weights.
This commit is contained in:
Ryan Malloy 2026-02-17 03:53:07 -07:00
parent 86a2e386b7
commit 27a6e7106f
2 changed files with 186 additions and 2 deletions
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5
docs/astro.config.mjs
View File

@ -5,7 +5,8 @@ import remarkMath from "remark-math";
import rehypeKatex from "rehype-katex"; import rehypeKatex from "rehype-katex";
import mermaid from "astro-mermaid"; import mermaid from "astro-mermaid";
import icon from "astro-icon"; import icon from "astro-icon";
import opengraphImages, { presets } from "astro-opengraph-images"; import opengraphImages from "astro-opengraph-images";
import { pgOrbitOgImage } from "./src/og-renderer.js";
import * as fs from "fs"; import * as fs from "fs";
export default defineConfig({ export default defineConfig({
@ -135,7 +136,7 @@ export default defineConfig({
}, },
], ],
}, },
render: presets.blackAndWhite, render: pgOrbitOgImage,
}), }),
], ],

183
docs/src/og-renderer.tsx Normal file
View File

@ -0,0 +1,183 @@
import React from "react";
import type { RenderFunctionInput } from "astro-opengraph-images";
export async function pgOrbitOgImage({
title,
description,
}: RenderFunctionInput): Promise<React.ReactNode> {
return Promise.resolve(
<div
style={{
height: "100%",
width: "100%",
display: "flex",
flexDirection: "column",
backgroundColor: "#0a0e17",
fontFamily: "Inter, system-ui, sans-serif",
position: "relative",
overflow: "hidden",
}}
>
{/* Top accent bar */}
<div
style={{
height: "4px",
width: "100%",
background: "linear-gradient(to right, #f59e0b, #fbbf24, #f59e0b)",
}}
/>
{/* Decorative orbital rings (top-right) */}
<svg
width="320"
height="320"
viewBox="0 0 320 320"
style={{
position: "absolute",
top: "-60px",
right: "-40px",
opacity: 0.08,
}}
>
<ellipse
cx="160"
cy="160"
rx="140"
ry="60"
stroke="#f59e0b"
stroke-width="2"
fill="none"
transform="rotate(-20 160 160)"
/>
<ellipse
cx="160"
cy="160"
rx="120"
ry="45"
stroke="#fbbf24"
stroke-width="1.5"
fill="none"
transform="rotate(35 160 160)"
/>
<ellipse
cx="160"
cy="160"
rx="90"
ry="35"
stroke="#f59e0b"
stroke-width="1"
fill="none"
transform="rotate(-5 160 160)"
/>
<circle cx="160" cy="160" r="8" fill="#f59e0b" />
</svg>
{/* Content area */}
<div
style={{
display: "flex",
flexDirection: "column",
justifyContent: "space-between",
flexGrow: 1,
padding: "48px 64px",
}}
>
{/* Title + description */}
<div
style={{
display: "flex",
flexDirection: "column",
marginTop: "32px",
}}
>
<div
style={{
fontSize: 56,
fontWeight: 700,
color: "#e2e8f0",
lineHeight: 1.15,
maxWidth: "900px",
}}
>
{title}
</div>
{description && (
<div
style={{
fontSize: 28,
color: "#8896a8",
marginTop: "20px",
lineHeight: 1.4,
maxWidth: "800px",
}}
>
{description}
</div>
)}
</div>
{/* Footer */}
<div
style={{
display: "flex",
alignItems: "center",
justifyContent: "space-between",
}}
>
<div
style={{
display: "flex",
alignItems: "center",
gap: "12px",
}}
>
{/* Amber dot */}
<div
style={{
width: "12px",
height: "12px",
borderRadius: "50%",
backgroundColor: "#f59e0b",
}}
/>
<div
style={{
fontSize: 24,
fontWeight: 700,
color: "#e2e8f0",
}}
>
pg_orbit
</div>
<div
style={{
fontSize: 20,
color: "#556677",
marginLeft: "4px",
}}
>
Celestial mechanics for PostgreSQL
</div>
</div>
<div
style={{
fontSize: 18,
color: "#556677",
}}
>
pg-orbit.warehack.ing
</div>
</div>
</div>
{/* Bottom accent bar */}
<div
style={{
height: "4px",
width: "100%",
background: "linear-gradient(to right, #f59e0b, #fbbf24, #f59e0b)",
}}
/>
</div>,
);
}