Merge remote-tracking branch 'origin/upstream/main'

common/constants.go

@@ -101,6 +101,10 @@ var RelayTimeout = GetOrDefault("RELAY_TIMEOUT", 0) // unit is second
 var GeminiSafetySetting = GetOrDefaultString("GEMINI_SAFETY_SETTING", "BLOCK_NONE")
 
 var Theme = GetOrDefaultString("THEME", "default")
+var ValidThemes = map[string]bool{
+	"default": true,
+	"berry":   true,
+}
 
 const (
 	RequestIdKey = "X-Oneapi-Request-Id"