That's one of the high-res grass textures somebody made for the high res texture packs, so it's ok. Modifying the textures to make players easier to see, however, is not.
LMAO, I guess you really don't know how ridiculous that sounds?
So where's the board of judges that determine if the texture I made breaks the rule of making players easier to see?
That's like the mattress tag laws. The laws are there, we all know them, but if we remove our tags no one would ever know unless we did something stupid like take a picture of our mattress and released it for the world to see.
I LAUGH AT THEE