From ec77d051df4e5c6910957e03eba7feda58c00199 Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Fri, 4 Aug 2023 23:02:55 +0530
Subject: [PATCH] Replace another deprecated function

---
 go.mod                     | 1 +
 go.sum                     | 2 ++
 tools/themes/collection.go | 5 ++++-
 3 files changed, 7 insertions(+), 1 deletion(-)

diff --git a/go.mod b/go.mod
index c2c8ee2fd..d67cc9c57 100644
--- a/go.mod
+++ b/go.mod
@@ -17,6 +17,7 @@ require (
 	golang.org/x/exp v0.0.0-20230801115018-d63ba01acd4b
 	golang.org/x/image v0.10.0
 	golang.org/x/sys v0.11.0
+	golang.org/x/text v0.12.0
 	howett.net/plist v1.0.0
 )
 
diff --git a/go.sum b/go.sum
index f6d4049d8..41188125a 100644
--- a/go.sum
+++ b/go.sum
@@ -99,6 +99,8 @@ golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
 golang.org/x/text v0.7.0/go.mod h1:mrYo+phRRbMaCq/xk9113O4dZlRixOauAjOtrjsXDZ8=
 golang.org/x/text v0.11.0/go.mod h1:TvPlkZtksWOMsz7fbANvkp4WM8x/WCo/om8BMLbz+aE=
+golang.org/x/text v0.12.0 h1:k+n5B8goJNdU7hSvEtMUz3d1Q6D/XW4COJSJR6fN0mc=
+golang.org/x/text v0.12.0/go.mod h1:TvPlkZtksWOMsz7fbANvkp4WM8x/WCo/om8BMLbz+aE=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc=
diff --git a/tools/themes/collection.go b/tools/themes/collection.go
index 7b0b54341..3560486e4 100644
--- a/tools/themes/collection.go
+++ b/tools/themes/collection.go
@@ -30,6 +30,8 @@ import (
 	"golang.org/x/exp/maps"
 	"golang.org/x/exp/slices"
 	"golang.org/x/sys/unix"
+	"golang.org/x/text/cases"
+	"golang.org/x/text/language"
 )
 
 var _ = fmt.Print
@@ -788,7 +790,8 @@ func ThemeNameFromFileName(fname string) string {
 	fname = fname[:len(fname)-len(path.Ext(fname))]
 	fname = strings.ReplaceAll(fname, "_", " ")
 	fname = camel_case_pat().ReplaceAllString(fname, "$1 $2")
-	return strings.Join(utils.Map(strings.Title, strings.Split(fname, " ")), " ")
+	c := cases.Title(language.English)
+	return strings.Join(utils.Map(c.String, strings.Split(fname, " ")), " ")
 }
 
 func (self *Themes) Len() int { return len(self.name_map) }