Mobs and Entities turns to lightish-blue when I have a Night-vision Effect

When I was playing on my creative world,I drunk a night vision potion and then a pig came to me and I noticed that its color is lightish-blue but you can still see the pinkish color of it. When the pig walked,it returned to its normal color and then it turns to a lightish-blue color again. This is desame with all mobs and entities. I know that when you have a night vision effect,your vision brighens,not changing to another color. Please fix this and I will really appreciate your work. (I can not post the photo because it says "Cannot attach empty file .jpg" even the photo can be uploaded.)