Add ability to associate custom CSS with a pull payment

BTCPayServer/Models/WalletViewModels/PullPaymentsModel.cs

@@ -42,5 +42,10 @@ namespace BTCPayServer.Models.WalletViewModels
         [Required]
         [ReadOnly(true)]
         public string Currency { get; set; }
+        [MaxLength(500)]
+        [Display(Name = "Custom bootstrap CSS file")]
+        public string CustomCSSLink { get; set; }
+        [Display(Name = "Custom CSS Code")]
+        public string EmbeddedCSS { get; set; }
     }
 }