Hi! The current validation looks like this: <img width="775" alt="Képernyőfotó 2020-06-22 - 11 46 00" src="https://user-images.githubusercontent.com/43353335/85273783-5a2d0400-b47e-11ea-98ff-f8839a1c5c20.png"> Setting the border color instead would look much better: <img width="784" alt="Képernyőfotó 2020-06-22 - 11 48 45" src="https://user-images.githubusercontent.com/43353335/85273831-6add7a00-b47e-11ea-91ae-2c07224f6677.png"> I hope this will be included in a future release. Thanks.