added an alert color

.config/polybar/config.ini

@@ -20,6 +20,7 @@ foreground = #e0def4
 background-alt = #453f69
 background-alt2 = #1c1e2b
 foreground-alt = #6e6a86
+alert = #a60f2b
 #############################################
 
 [bar/small]
@@ -131,6 +132,7 @@ label-focused-padding = 1
 label-focused-underline = ${colors.background-alt}
 #############################################
 label-urgent = ${self.workspace-label}
+label-urgent-foreground = ${colors.alert}
 label-urgent-padding = 1
 #############################################
 label-empty-foreground = ${colors.foreground-alt}