From 0586e611b78a4e5a88fb7a617ffa52e4ecb05f96 Mon Sep 17 00:00:00 2001
From: Yudong Jin <krahets@163.com>
Date: Fri, 2 Jan 2026 05:16:24 +0800
Subject: [PATCH] Update buttons in READMEs (#1840)

* Update READMEs

* Update buttons in READMEs.
---
 README.md                                                       | 2 +-
 ...btn_download_pdf_dark.svg => btn_download_pdf_epub_dark.svg} | 0
 en/README.md                                                    | 2 +-
 ...btn_download_pdf_dark.svg => btn_download_pdf_epub_dark.svg} | 0
 ja/docs/index.assets/btn_chinese_edition.svg                    | 1 -
 ja/docs/index.assets/btn_chinese_edition_dark.svg               | 1 -
 ja/docs/index.assets/btn_download_pdf.svg                       | 1 -
 ja/docs/index.assets/btn_download_pdf_dark.svg                  | 1 -
 ja/docs/index.assets/btn_download_pdf_epub_dark.svg             | 1 +
 ja/docs/index.assets/btn_read_online.svg                        | 1 -
 zh-hant/README.md                                               | 2 +-
 ...btn_download_pdf_dark.svg => btn_download_pdf_epub_dark.svg} | 0
 12 files changed, 4 insertions(+), 8 deletions(-)
 rename docs/index.assets/{btn_download_pdf_dark.svg => btn_download_pdf_epub_dark.svg} (100%)
 rename en/docs/index.assets/{btn_download_pdf_dark.svg => btn_download_pdf_epub_dark.svg} (100%)
 delete mode 100644 ja/docs/index.assets/btn_chinese_edition.svg
 delete mode 100644 ja/docs/index.assets/btn_chinese_edition_dark.svg
 delete mode 100644 ja/docs/index.assets/btn_download_pdf.svg
 delete mode 100644 ja/docs/index.assets/btn_download_pdf_dark.svg
 create mode 100644 ja/docs/index.assets/btn_download_pdf_epub_dark.svg
 delete mode 100644 ja/docs/index.assets/btn_read_online.svg
 rename zh-hant/docs/index.assets/{btn_download_pdf_dark.svg => btn_download_pdf_epub_dark.svg} (100%)

diff --git a/README.md b/README.md
index b91f45a7a..58ccc3e7d 100644
--- a/README.md
+++ b/README.md
@@ -13,7 +13,7 @@
   <a href="https://www.hello-algo.com/">
     <img src="https://www.hello-algo.com/index.assets/btn_read_online_dark.svg" height="45"></a>
   <a href="https://github.com/krahets/hello-algo/releases">
-    <img src="https://www.hello-algo.com/index.assets/btn_download_pdf_dark.svg" height="45"></a>
+    <img src="https://www.hello-algo.com/index.assets/btn_download_pdf_epub_dark.svg" height="45"></a>
 </p>
 
 <p align="center">
diff --git a/docs/index.assets/btn_download_pdf_dark.svg b/docs/index.assets/btn_download_pdf_epub_dark.svg
similarity index 100%
rename from docs/index.assets/btn_download_pdf_dark.svg
rename to docs/index.assets/btn_download_pdf_epub_dark.svg
diff --git a/en/README.md b/en/README.md
index 791605196..db534581f 100644
--- a/en/README.md
+++ b/en/README.md
@@ -13,7 +13,7 @@
   <a href="https://www.hello-algo.com/en/">
     <img src="https://www.hello-algo.com/en/index.assets/btn_read_online_dark.svg" height="45"></a>
   <a href="https://github.com/krahets/hello-algo/releases">
-    <img src="https://www.hello-algo.com/en/index.assets/btn_download_pdf_dark.svg" height="45"></a>
+    <img src="https://www.hello-algo.com/en/index.assets/btn_download_pdf_epub_dark.svg" height="45"></a>
 </p>
 
 <p align="center">
diff --git a/en/docs/index.assets/btn_download_pdf_dark.svg b/en/docs/index.assets/btn_download_pdf_epub_dark.svg
similarity index 100%
rename from en/docs/index.assets/btn_download_pdf_dark.svg
rename to en/docs/index.assets/btn_download_pdf_epub_dark.svg
diff --git a/ja/docs/index.assets/btn_chinese_edition.svg b/ja/docs/index.assets/btn_chinese_edition.svg
deleted file mode 100644
index 1d43e5738..000000000
--- a/ja/docs/index.assets/btn_chinese_edition.svg
+++ /dev/null
@@ -1 +0,0 @@
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\ No newline at end of file
diff --git a/ja/docs/index.assets/btn_chinese_edition_dark.svg b/ja/docs/index.assets/btn_chinese_edition_dark.svg
deleted file mode 100644
index e622663ba..000000000
--- a/ja/docs/index.assets/btn_chinese_edition_dark.svg
+++ /dev/null
@@ -1 +0,0 @@
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\ No newline at end of file
diff --git a/ja/docs/index.assets/btn_download_pdf.svg b/ja/docs/index.assets/btn_download_pdf.svg
deleted file mode 100644
index ed236a077..000000000
--- a/ja/docs/index.assets/btn_download_pdf.svg
+++ /dev/null
@@ -1 +0,0 @@
-<svg width="358" height="142" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" xml:space="preserve" overflow="hidden"><g transform="translate(-3437 -838)"><g><path d="M3438 907C3438 869.997 3468 840 3505 840L3726 840C3763 840 3793 869.997 3793 907L3793 907C3793 944.004 3763 974.001 3726 974.001L3505 974C3468 974 3438 944.003 3438 907Z" fill="#55AEA6" fill-rule="evenodd" fill-opacity="1"/><text fill="#FFFFFF" fill-opacity="1" font-family="Noto Sans SC,Noto Sans SC_MSFontService,sans-serif" font-style="normal" font-variant="normal" font-weight="400" font-stretch="normal" font-size="48" text-anchor="start" direction="ltr" writing-mode="lr-tb" unicode-bidi="normal" text-decoration="none" transform="matrix(1 0 0 1 3630.75 924)">PDF</text><g><g><g><path d="M3515 882.125C3515 877.644 3518.64 874 3523.12 874L3543.44 874 3543.44 890.25C3543.44 892.497 3545.25 894.313 3547.5 894.313L3563.75 894.313 3563.75 912.594 3537.34 912.594C3532.86 912.594 3529.22 916.237 3529.22 920.719L3529.22 939 3523.12 939C3518.64 939 3515 935.357 3515 930.875L3515 882.125ZM3563.75 890.25 3547.5 890.25 3547.5 874 3563.75 890.25ZM3537.34 918.688 3541.41 918.688C3545.33 918.688 3548.52 921.874 3548.52 925.797 3548.52 929.72 3545.33 932.906 3541.41 932.906L3539.38 932.906 3539.38 936.969C3539.38 938.086 3538.46 939 3537.34 939 3536.23 939 3535.31 938.086 3535.31 936.969L3535.31 930.875 3535.31 920.719C3535.31 919.602 3536.23 918.688 3537.34 918.688ZM3541.41 928.844C3543.09 928.844 3544.45 927.486 3544.45 925.797 3544.45 924.109 3543.09 922.75 3541.41 922.75L3539.38 922.75 3539.38 928.844 3541.41 928.844ZM3553.59 918.688 3557.66 918.688C3561.02 918.688 3563.75 921.417 3563.75 924.781L3563.75 932.906C3563.75 936.271 3561.02 939 3557.66 939L3553.59 939C3552.48 939 3551.56 938.086 3551.56 936.969L3551.56 920.719C3551.56 919.602 3552.48 918.688 3553.59 918.688ZM3557.66 934.938C3558.77 934.938 3559.69 934.024 3559.69 932.906L3559.69 924.781C3559.69 923.664 3558.77 922.75 3557.66 922.75L3555.62 922.75 3555.62 934.938 3557.66 934.938ZM3567.81 920.719C3567.81 919.602 3568.73 918.688 3569.84 918.688L3575.94 918.688C3577.05 918.688 3577.97 919.602 3577.97 920.719 3577.97 921.836 3577.05 922.75 3575.94 922.75L3571.88 922.75 3571.88 926.813 3575.94 926.813C3577.05 926.813 3577.97 927.727 3577.97 928.844 3577.97 929.961 3577.05 930.875 3575.94 930.875L3571.88 930.875 3571.88 936.969C3571.88 938.086 3570.96 939 3569.84 939 3568.73 939 3567.81 938.086 3567.81 936.969L3567.81 928.844 3567.81 920.719Z" fill="#FFFFFF" fill-rule="nonzero" fill-opacity="1"/></g></g></g></g></g></svg>
\ No newline at end of file
diff --git a/ja/docs/index.assets/btn_download_pdf_dark.svg b/ja/docs/index.assets/btn_download_pdf_dark.svg
deleted file mode 100644
index 308cfeda0..000000000
--- a/ja/docs/index.assets/btn_download_pdf_dark.svg
+++ /dev/null
@@ -1 +0,0 @@
-<svg width="358" height="142" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" xml:space="preserve" overflow="hidden"><g transform="translate(-2699 -838)"><g><path d="M2702 907C2702 869.997 2732 840 2769 840L2989 840C3026 840 3056 869.997 3056 907 3056 944.003 3026 974 2989 974L2769 974C2732 974 2702 944.003 2702 907Z" fill="#52BBB1" fill-rule="evenodd" fill-opacity="1"/><text fill="#3B3B3B" fill-opacity="1" font-family="Noto Sans SC,Noto Sans SC_MSFontService,sans-serif" font-style="normal" font-variant="normal" font-weight="400" font-stretch="normal" font-size="48" text-anchor="start" direction="ltr" writing-mode="lr-tb" unicode-bidi="normal" text-decoration="none" transform="matrix(1 0 0 1 2894.18 924)">PDF</text><g><g><g><path d="M2779 882.125C2779 877.644 2782.64 874 2787.12 874L2807.44 874 2807.44 890.25C2807.44 892.497 2809.25 894.313 2811.5 894.313L2827.75 894.313 2827.75 912.594 2801.34 912.594C2796.86 912.594 2793.22 916.237 2793.22 920.719L2793.22 939 2787.12 939C2782.64 939 2779 935.357 2779 930.875L2779 882.125ZM2827.75 890.25 2811.5 890.25 2811.5 874 2827.75 890.25ZM2801.34 918.688 2805.41 918.688C2809.33 918.688 2812.52 921.874 2812.52 925.797 2812.52 929.72 2809.33 932.906 2805.41 932.906L2803.37 932.906 2803.37 936.969C2803.37 938.086 2802.46 939 2801.34 939 2800.23 939 2799.31 938.086 2799.31 936.969L2799.31 930.875 2799.31 920.719C2799.31 919.602 2800.23 918.688 2801.34 918.688ZM2805.41 928.844C2807.09 928.844 2808.45 927.486 2808.45 925.797 2808.45 924.109 2807.09 922.75 2805.41 922.75L2803.37 922.75 2803.37 928.844 2805.41 928.844ZM2817.59 918.688 2821.66 918.688C2825.02 918.688 2827.75 921.417 2827.75 924.781L2827.75 932.906C2827.75 936.271 2825.02 939 2821.66 939L2817.59 939C2816.48 939 2815.56 938.086 2815.56 936.969L2815.56 920.719C2815.56 919.602 2816.48 918.688 2817.59 918.688ZM2821.66 934.938C2822.77 934.938 2823.69 934.024 2823.69 932.906L2823.69 924.781C2823.69 923.664 2822.77 922.75 2821.66 922.75L2819.62 922.75 2819.62 934.938 2821.66 934.938ZM2831.81 920.719C2831.81 919.602 2832.73 918.688 2833.84 918.688L2839.94 918.688C2841.05 918.688 2841.97 919.602 2841.97 920.719 2841.97 921.836 2841.05 922.75 2839.94 922.75L2835.87 922.75 2835.87 926.813 2839.94 926.813C2841.05 926.813 2841.97 927.727 2841.97 928.844 2841.97 929.961 2841.05 930.875 2839.94 930.875L2835.87 930.875 2835.87 936.969C2835.87 938.086 2834.96 939 2833.84 939 2832.73 939 2831.81 938.086 2831.81 936.969L2831.81 928.844 2831.81 920.719Z" fill="#3B3B3B" fill-rule="nonzero" fill-opacity="1"/></g></g></g></g></g></svg>
\ No newline at end of file
diff --git a/ja/docs/index.assets/btn_download_pdf_epub_dark.svg b/ja/docs/index.assets/btn_download_pdf_epub_dark.svg
new file mode 100644
index 000000000..20892d60a
--- /dev/null
+++ b/ja/docs/index.assets/btn_download_pdf_epub_dark.svg
@@ -0,0 +1 @@
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diff --git a/ja/docs/index.assets/btn_read_online.svg b/ja/docs/index.assets/btn_read_online.svg
deleted file mode 100644
index a2500e44f..000000000
--- a/ja/docs/index.assets/btn_read_online.svg
+++ /dev/null
@@ -1 +0,0 @@
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diff --git a/zh-hant/README.md b/zh-hant/README.md
index 27e43b35d..bfccef360 100644
--- a/zh-hant/README.md
+++ b/zh-hant/README.md
@@ -13,7 +13,7 @@
   <a href="https://www.hello-algo.com/zh-hant/">
     <img src="https://www.hello-algo.com/zh-hant/index.assets/btn_read_online_dark.svg" height="45"></a>
   <a href="https://github.com/krahets/hello-algo/releases">
-    <img src="https://www.hello-algo.com/zh-hant/index.assets/btn_download_pdf_dark.svg" height="45"></a>
+    <img src="https://www.hello-algo.com/zh-hant/index.assets/btn_download_pdf_epub_dark.svg" height="45"></a>
 </p>
 
 <p align="center">
diff --git a/zh-hant/docs/index.assets/btn_download_pdf_dark.svg b/zh-hant/docs/index.assets/btn_download_pdf_epub_dark.svg
similarity index 100%
rename from zh-hant/docs/index.assets/btn_download_pdf_dark.svg
rename to zh-hant/docs/index.assets/btn_download_pdf_epub_dark.svg