Hex color enhancements

Author: Pa-Touche

sormas-api/src/main/resources/validations.properties

@@ -330,5 +330,5 @@ systemConfigurationValueValidationNotAValidEmailsenderName = Value is not a vali
 systemConfigurationValueValidationNotAValidSmsSenderName = Value is not a valid name. Name should contain only letters and numbers without spaces & special characters. For more info please see https://developer.vonage.com/en/messaging/sms/guides/custom-sender-id .
 smsAuthKeyValueValidation = SMS Auth key value is not valid
 smsAuthSecretValueValidation = SMS Auth secret value is not valid
-systemConfigurationValueValidationInvalidBackgroundColor = Pre-defined values are: green, red, indigo, gray, default (case-sensitive) otherwise must match hexadecimal format, example: #dd2b0e or #4AA
+systemConfigurationValueValidationInvalidBackgroundColor = Pre-defined values are: green, red, indigo, gray, default (case-sensitive) otherwise must match hexadecimal format (with or without hash "#"), example: #dd2b0e or #4AA or dd2b0e
 systemConfigurationValueValidationMenuSubtitle = Can be empty or up to 16 (any) characters. Can be used to define name of the environment: PRODUCTION - TEST etc.

sormas-ui/src/main/java/de/symeda/sormas/ui/Menu.java

@@ -214,11 +214,18 @@ private static void defineMenuSubtitleIfSystemConfigured(VerticalLayout topConta
 			actualColorBackgroundColor = "#737278";
 			break;
 		default:
-			actualColorBackgroundColor = backgroundColor;
+			actualColorBackgroundColor = addHashIfMissing(backgroundColor);
 		}
 		return actualColorBackgroundColor;
 	}
 
+	private static String addHashIfMissing(String backgroundColor) {
+		if (!StringUtils.startsWith(backgroundColor, HASH)) {
+			return HASH + backgroundColor;
+		}
+		return backgroundColor;
+	}
+
 	private void showSettingsPopup() {
 
 		Window window = VaadinUiUtil.createPopupWindow();