Infinity symbol not rendered correctly on Windows about unciv HOT 5 CLOSED

Index: desktop/src/com/unciv/app/desktop/UncivWindowListener.kt
IDEA additional info:
Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
<+>UTF-8
===================================================================
diff --git a/desktop/src/com/unciv/app/desktop/UncivWindowListener.kt b/desktop/src/com/unciv/app/desktop/UncivWindowListener.kt
--- a/desktop/src/com/unciv/app/desktop/UncivWindowListener.kt	(revision 4503e724006690a334ef01f351c61948f1efa8ac)
+++ b/desktop/src/com/unciv/app/desktop/UncivWindowListener.kt	(date 1709641530970)
@@ -80,7 +80,7 @@
          *  (which, by the way, says "Incomplete implementation to support demos.")
          */
         val user32: User32? = try {
-            if (System.getProperty("os.name")?.contains("Windows") == true) {
+            if (SystemUtils.isWindows()) {
                 Native.load(User32::class.java)
             } else {
                 null
Index: desktop/src/com/unciv/app/desktop/SystemUtils.kt
IDEA additional info:
Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
<+>UTF-8
===================================================================
diff --git a/desktop/src/com/unciv/app/desktop/SystemUtils.kt b/desktop/src/com/unciv/app/desktop/SystemUtils.kt
--- a/desktop/src/com/unciv/app/desktop/SystemUtils.kt	(revision 4503e724006690a334ef01f351c61948f1efa8ac)
+++ b/desktop/src/com/unciv/app/desktop/SystemUtils.kt	(date 1709642097609)
@@ -5,12 +5,18 @@
 
 object SystemUtils {
 
+    /** Detects if we're running on Windows via Java's os.name */
+    // Note com.badlogic.gdx.utils.SharedLibraryLoader.isWindows basically does the same
+    // but seeing as it fails isLinux on FreeBSD - cheap enough to do it again.
+    fun isWindows() = System.getProperty("os.name")?.isWindows() == true
+    private fun String.isWindows() = startsWith("Windows", ignoreCase = true)
+
     fun getSystemInfo(): String {
         val builder = StringBuilder()
 
         // Operating system
         val osName = System.getProperty("os.name") ?: "Unknown"
-        val isWindows = osName.startsWith("Windows", ignoreCase = true)
+        val isWindows = osName.isWindows()
         builder.append("OS: $osName")
         if (!isWindows) {
             val osInfo = listOfNotNull(System.getProperty("os.arch"), System.getProperty("os.version")).joinToString()
Index: desktop/src/com/unciv/app/desktop/DesktopFont.kt
IDEA additional info:
Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
<+>UTF-8
===================================================================
diff --git a/desktop/src/com/unciv/app/desktop/DesktopFont.kt b/desktop/src/com/unciv/app/desktop/DesktopFont.kt
--- a/desktop/src/com/unciv/app/desktop/DesktopFont.kt	(revision 4503e724006690a334ef01f351c61948f1efa8ac)
+++ b/desktop/src/com/unciv/app/desktop/DesktopFont.kt	(date 1709650568626)
@@ -30,7 +30,10 @@
         // System font
         else
         {
-            this.font = Font(fontFamilyData.invariantName, Font.PLAIN, size)
+            this.font = Font(fontFamilyData.invariantName.ifBlank {
+                // Java's default manages to give you a CompositeFont omitting the infinity symbol
+                if (SystemUtils.isWindows()) "Segoe UI" else null
+            }, Font.PLAIN, size)
         }
 
         val bufferedImage = BufferedImage(1, 1, BufferedImage.TYPE_4BYTE_ABGR)