[khRamin78]

"TextDrawSetOutline Sets the thickness of a textdraw's text's outline. TextDrawBackgroundColor can be used to change the color."

https://sampwiki.blast.hk/wiki/TextDrawSetOutline

https://sampwiki.blast.hk/wiki/TextDrawBackgroundColor

If TextDrawSetOutline is used with size > 0, the outline color will match the color used in TextDrawBackgroundColor. Changing the value of color seems to alter the color used in TextDrawColor