diff --git a/runtime/themes/ayu_dark.toml b/runtime/themes/ayu_dark.toml
index d169fcf4760e0..1e1aab91eaaa4 100644
--- a/runtime/themes/ayu_dark.toml
+++ b/runtime/themes/ayu_dark.toml
@@ -22,6 +22,9 @@
 "namespace" = "blue"
 "markup.heading" = "orange"
 "markup.list" = "yellow"
+"markup.bold" = { fg = "orange", modifiers = ["bold"] }
+"markup.italic" = { fg = "orange", modifiers = ["italic"] }
+"markup.strikethrough" = { modifiers = ["crossed_out"] }
 "markup.raw.block" = "orange"
 "markup.link.url" = "blue"
 "markup.link.text" = "yellow"
diff --git a/runtime/themes/ayu_light.toml b/runtime/themes/ayu_light.toml
index 2b272b0a97707..d4cb56de8a5bc 100644
--- a/runtime/themes/ayu_light.toml
+++ b/runtime/themes/ayu_light.toml
@@ -22,8 +22,11 @@
 "namespace" = "blue"
 "markup.heading" = "orange"
 "markup.list" = "yellow"
+"markup.bold" = { fg = "orange", modifiers = ["bold"] }
+"markup.italic" = { fg = "orange", modifiers = ["italic"] }
+"markup.strikethrough" = { modifiers = ["crossed_out"] }
 "markup.raw.block" = "orange"
-"markup.link.url" = "blue"
+"markup.link.url" = { fg = "blue", modifiers = ["underlined"] }
 "markup.link.text" = "yellow"
 "markup.link.label" = "green"
 "markup.quote" = "yellow"
diff --git a/runtime/themes/ayu_mirage.toml b/runtime/themes/ayu_mirage.toml
index 807f52714388b..b27efc1cccb17 100644
--- a/runtime/themes/ayu_mirage.toml
+++ b/runtime/themes/ayu_mirage.toml
@@ -22,6 +22,9 @@
 "namespace" = "blue"
 "markup.heading" = "orange"
 "markup.list" = "yellow"
+"markup.bold" = { fg = "orange", modifiers = ["bold"] }
+"markup.italic" = { fg = "orange", modifiers = ["italic"] }
+"markup.strikethrough" = { modifiers = ["crossed_out"] }
 "markup.raw.block" = "orange"
 "markup.link.url" = "blue"
 "markup.link.text" = "yellow"