This fix returns textures to umbrellas (canopies) in a street cafe near Unity Station in Los Santos. Now they are not brown shades, but beautiful and green. :P
Installation: 1. Place the folder "FixСanopy" in the game folder "Modloader"
Or
2. Place the files from the folder "FixСanopy" into the archive at: "your GTA SA\models\gta3.img" using the program "GTA-SA Crazy IMG Editor".