From 6592bf0baa51476ec38089e0f207782260aaa33e Mon Sep 17 00:00:00 2001
From: Claude <noreply@anthropic.com>
Date: Fri, 6 Nov 2026 01:35:32 +0000
Subject: [PATCH] docs: add a logo to the README

The mark is a prefix tree of KV blocks: three shared prefix blocks fork
into two requests' branches, and one block, evicted, must be recomputed.
The wordmark is Inter Display, converted to outlines so it renders the
same without the font. logo-dark.svg is the variant for GitHub's dark
theme, picked by a <picture> element.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_015VD7L7yjfBMktJRmHXQGHD
---
 README.md                | 7 ++++++-
 doc/assets/logo-dark.svg | 1 +
 doc/assets/logo.svg      | 1 +
 3 files changed, 8 insertions(+), 1 deletion(-)
 create mode 100644 doc/assets/logo-dark.svg
 create mode 100644 doc/assets/logo.svg

diff --git a/README.md b/README.md
index adf570a..3413abe 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,9 @@
-# PrefixSim
+<p>
+  <picture>
+    <source media="(prefers-color-scheme: dark)" srcset="doc/assets/logo-dark.svg">
+    <img alt="PrefixSim" src="doc/assets/logo.svg" width="380">
+  </picture>
+</p>
 
 [![build](https://github.com/cacheMon/PrefixSim/actions/workflows/build.yml/badge.svg)](https://github.com/cacheMon/PrefixSim/actions/workflows/build.yml)
 [![License: Apache 2.0](https://img.shields.io/badge/License-Apache_2.0-blue.svg)](LICENSE)
diff --git a/doc/assets/logo-dark.svg b/doc/assets/logo-dark.svg
new file mode 100644
index 0000000..d2ab36d
--- /dev/null
+++ b/doc/assets/logo-dark.svg
@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 432 82" width="432" height="82" role="img" aria-label="PrefixSim"><title>PrefixSim</title><g transform="translate(0 -1)"><rect x="4" y="31.0" width="22" height="22" rx="5" fill="#9ec5f4"/><rect x="32" y="31.0" width="22" height="22" rx="5" fill="#9ec5f4"/><rect x="60" y="31.0" width="22" height="22" rx="5" fill="#9ec5f4"/><path d="M82 42H91M97 16H100M97 16A6 6 0 0 0 91 22V62A6 6 0 0 0 97 68H100" fill="none" stroke="#256abf" stroke-width="3" stroke-linecap="round" stroke-linejoin="round"/><rect x="100" y="5.0" width="22" height="22" rx="5" fill="#3987e5"/><rect x="128" y="5.0" width="22" height="22" rx="5" fill="#3987e5"/><rect x="100" y="57.0" width="22" height="22" rx="5" fill="#3987e5"/><rect x="129.25" y="58.25" width="19.5" height="19.5" rx="3.75" fill="none" stroke="#eb6834" stroke-width="2.5" stroke-dasharray="none"/></g><path d="M179.04 61.36H187.46V47.36H195C204.16 47.36 210.02 42.19 210.02 33.98C210.02 25.78 204.27 20.61 195.11 20.61H179.04ZM187.46 40.3V27.67H194.57C199.02 27.67 201.79 30.1 201.79 33.98C201.79 37.87 199.02 40.3 194.57 40.3ZM213.95 61.36H222.02V45.72C222.02 41.37 224.45 39.07 227.76 39.07C229.13 39.07 230.63 39.18 231.23 39.21V32.34C230.58 32.32 229.79 32.29 228.86 32.29C225.05 32.29 222.87 33.93 221.8 37.4H221.72V32.48H213.95ZM247.78 62.01C254.78 62.01 260.36 58.02 261.42 52.28H254.07C253.33 54.52 251.17 55.97 248.02 55.97C243.79 55.97 241.32 53.21 241.19 48.94H261.72V46.78C261.72 37.98 256.01 31.82 247.5 31.82C239.22 31.82 233.34 38.14 233.34 46.95C233.34 55.72 239.03 62.01 247.78 62.01ZM241.24 43.8C241.68 40.19 244.06 37.95 247.67 37.95C251.3 37.95 253.71 40.19 254.12 43.8ZM282.86 32.48H276.95V30.1C276.95 27.81 277.8 26.93 280.12 26.93H282.86V20.61H278.29C272.06 20.61 268.91 23.35 268.91 28.73V32.48H263.69V38.8H268.91V61.36H276.95V38.8H282.86ZM286.8 61.36H294.86V32.48H286.8ZM290.82 28.84C293.47 28.84 295.41 27.01 295.41 24.55C295.41 22.09 293.47 20.26 290.82 20.26C288.16 20.26 286.22 22.09 286.22 24.55C286.22 27.01 288.16 28.84 290.82 28.84ZM298.04 61.36H306.84L309.79 56.93C310.86 55.18 311.82 53.59 312.8 51.98C313.73 53.59 314.69 55.18 315.73 56.93L318.62 61.36H327.46L317.26 46.45L326.99 32.48H318.32L315.73 36.53C314.69 38.2 313.79 39.75 312.88 41.31C311.98 39.75 311.08 38.2 310.09 36.53L307.55 32.48H298.75L308.37 46.65Z" fill="#f0efec"/><path d="M346.24 62.01C356.28 62.01 362.4 57.17 362.4 49.32C362.4 43.2 358.55 39.62 349.85 37.79L345.94 36.94C340.94 35.84 338.91 34.45 338.91 31.93C338.91 28.95 341.84 26.88 346 26.88C350.37 26.88 353.24 29.25 353.54 33.11H361.42C361.17 24.91 355.35 19.96 345.97 19.96C336.7 19.96 330.49 24.93 330.49 32.34C330.49 38.17 334.4 41.91 342.47 43.66L346.76 44.59C351.93 45.72 354.06 47.25 354.06 49.87C354.06 53.04 350.97 55.09 346.3 55.09C341.07 55.09 337.93 52.47 337.82 47.98H329.7C329.7 56.84 335.8 62.01 346.24 62.01ZM367.16 61.36H375.23V32.48H367.16ZM371.18 28.84C373.83 28.84 375.77 27.01 375.77 24.55C375.77 22.09 373.83 20.26 371.18 20.26C368.53 20.26 366.59 22.09 366.59 24.55C366.59 27.01 368.53 28.84 371.18 28.84ZM380.91 61.36H388.98V44.32C388.98 40.6 391.28 38.52 394.15 38.52C396.96 38.52 398.93 40.47 398.93 43.47V61.36H406.7V43.97C406.7 40.74 408.64 38.52 411.76 38.52C414.52 38.52 416.65 40.22 416.65 43.69V61.36H424.69V42.22C424.69 35.6 420.56 31.88 415.01 31.88C410.83 31.88 407.27 33.98 405.77 37.51C404.57 33.98 401.31 31.88 397.43 31.88C393.77 31.88 390.4 33.77 388.68 37.68V32.48H380.91Z" fill="#5598e7"/></svg>
diff --git a/doc/assets/logo.svg b/doc/assets/logo.svg
new file mode 100644
index 0000000..5e2a2cd
--- /dev/null
+++ b/doc/assets/logo.svg
@@ -0,0 +1 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 432 82" width="432" height="82" role="img" aria-label="PrefixSim"><title>PrefixSim</title><g transform="translate(0 -1)"><rect x="4" y="31.0" width="22" height="22" rx="5" fill="#0d366b"/><rect x="32" y="31.0" width="22" height="22" rx="5" fill="#0d366b"/><rect x="60" y="31.0" width="22" height="22" rx="5" fill="#0d366b"/><path d="M82 42H91M97 16H100M97 16A6 6 0 0 0 91 22V62A6 6 0 0 0 97 68H100" fill="none" stroke="#86b6ef" stroke-width="3" stroke-linecap="round" stroke-linejoin="round"/><rect x="100" y="5.0" width="22" height="22" rx="5" fill="#2a78d6"/><rect x="128" y="5.0" width="22" height="22" rx="5" fill="#2a78d6"/><rect x="100" y="57.0" width="22" height="22" rx="5" fill="#2a78d6"/><rect x="129.25" y="58.25" width="19.5" height="19.5" rx="3.75" fill="none" stroke="#eb6834" stroke-width="2.5" stroke-dasharray="none"/></g><path d="M179.04 61.36H187.46V47.36H195C204.16 47.36 210.02 42.19 210.02 33.98C210.02 25.78 204.27 20.61 195.11 20.61H179.04ZM187.46 40.3V27.67H194.57C199.02 27.67 201.79 30.1 201.79 33.98C201.79 37.87 199.02 40.3 194.57 40.3ZM213.95 61.36H222.02V45.72C222.02 41.37 224.45 39.07 227.76 39.07C229.13 39.07 230.63 39.18 231.23 39.21V32.34C230.58 32.32 229.79 32.29 228.86 32.29C225.05 32.29 222.87 33.93 221.8 37.4H221.72V32.48H213.95ZM247.78 62.01C254.78 62.01 260.36 58.02 261.42 52.28H254.07C253.33 54.52 251.17 55.97 248.02 55.97C243.79 55.97 241.32 53.21 241.19 48.94H261.72V46.78C261.72 37.98 256.01 31.82 247.5 31.82C239.22 31.82 233.34 38.14 233.34 46.95C233.34 55.72 239.03 62.01 247.78 62.01ZM241.24 43.8C241.68 40.19 244.06 37.95 247.67 37.95C251.3 37.95 253.71 40.19 254.12 43.8ZM282.86 32.48H276.95V30.1C276.95 27.81 277.8 26.93 280.12 26.93H282.86V20.61H278.29C272.06 20.61 268.91 23.35 268.91 28.73V32.48H263.69V38.8H268.91V61.36H276.95V38.8H282.86ZM286.8 61.36H294.86V32.48H286.8ZM290.82 28.84C293.47 28.84 295.41 27.01 295.41 24.55C295.41 22.09 293.47 20.26 290.82 20.26C288.16 20.26 286.22 22.09 286.22 24.55C286.22 27.01 288.16 28.84 290.82 28.84ZM298.04 61.36H306.84L309.79 56.93C310.86 55.18 311.82 53.59 312.8 51.98C313.73 53.59 314.69 55.18 315.73 56.93L318.62 61.36H327.46L317.26 46.45L326.99 32.48H318.32L315.73 36.53C314.69 38.2 313.79 39.75 312.88 41.31C311.98 39.75 311.08 38.2 310.09 36.53L307.55 32.48H298.75L308.37 46.65Z" fill="#0d366b"/><path d="M346.24 62.01C356.28 62.01 362.4 57.17 362.4 49.32C362.4 43.2 358.55 39.62 349.85 37.79L345.94 36.94C340.94 35.84 338.91 34.45 338.91 31.93C338.91 28.95 341.84 26.88 346 26.88C350.37 26.88 353.24 29.25 353.54 33.11H361.42C361.17 24.91 355.35 19.96 345.97 19.96C336.7 19.96 330.49 24.93 330.49 32.34C330.49 38.17 334.4 41.91 342.47 43.66L346.76 44.59C351.93 45.72 354.06 47.25 354.06 49.87C354.06 53.04 350.97 55.09 346.3 55.09C341.07 55.09 337.93 52.47 337.82 47.98H329.7C329.7 56.84 335.8 62.01 346.24 62.01ZM367.16 61.36H375.23V32.48H367.16ZM371.18 28.84C373.83 28.84 375.77 27.01 375.77 24.55C375.77 22.09 373.83 20.26 371.18 20.26C368.53 20.26 366.59 22.09 366.59 24.55C366.59 27.01 368.53 28.84 371.18 28.84ZM380.91 61.36H388.98V44.32C388.98 40.6 391.28 38.52 394.15 38.52C396.96 38.52 398.93 40.47 398.93 43.47V61.36H406.7V43.97C406.7 40.74 408.64 38.52 411.76 38.52C414.52 38.52 416.65 40.22 416.65 43.69V61.36H424.69V42.22C424.69 35.6 420.56 31.88 415.01 31.88C410.83 31.88 407.27 33.98 405.77 37.51C404.57 33.98 401.31 31.88 397.43 31.88C393.77 31.88 390.4 33.77 388.68 37.68V32.48H380.91Z" fill="#2a78d6"/></svg>