From d9c0a65df74296d7505657d72af748291c8e412b Mon Sep 17 00:00:00 2001
From: Masafumi Koba <473530+ybiquitous@users.noreply.github.com>
Date: Mon, 28 Apr 2025 10:09:01 +0900
Subject: [PATCH 1/2] Polish link underline in Darkfish CSS

This aims to make sure an underline in a link doesn't overlap with underscores in a method name.
---
 lib/rdoc/generator/template/darkfish/css/rdoc.css | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/lib/rdoc/generator/template/darkfish/css/rdoc.css b/lib/rdoc/generator/template/darkfish/css/rdoc.css
index 4a8bc98b47..8fe95cb695 100644
--- a/lib/rdoc/generator/template/darkfish/css/rdoc.css
+++ b/lib/rdoc/generator/template/darkfish/css/rdoc.css
@@ -96,6 +96,8 @@ main .anchor-link:target {
 a {
   color: var(--link-color);
   transition: color 0.3s ease;
+  text-decoration: underline;
+  text-underline-offset: 2px; /* Make sure it doesn't overlap with underscores in a method name. */
 }
 
 a:hover {

From f7304352e7cef3af97e53ed03a1ab4c82d0f5ccd Mon Sep 17 00:00:00 2001
From: Masafumi Koba <473530+ybiquitous@users.noreply.github.com>
Date: Tue, 29 Apr 2025 16:31:18 +0900
Subject: [PATCH 2/2] Increase `text-underline-offset` value with `em` unit

---
 lib/rdoc/generator/template/darkfish/css/rdoc.css | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/lib/rdoc/generator/template/darkfish/css/rdoc.css b/lib/rdoc/generator/template/darkfish/css/rdoc.css
index 8fe95cb695..c84a604c8c 100644
--- a/lib/rdoc/generator/template/darkfish/css/rdoc.css
+++ b/lib/rdoc/generator/template/darkfish/css/rdoc.css
@@ -97,7 +97,7 @@ a {
   color: var(--link-color);
   transition: color 0.3s ease;
   text-decoration: underline;
-  text-underline-offset: 2px; /* Make sure it doesn't overlap with underscores in a method name. */
+  text-underline-offset: 0.2em; /* Make sure it doesn't overlap with underscores in a method name. */
 }
 
 a:hover {