how to change the color of a sprite without touching the background using a shader

Question

I have a sprite that has a transparent background, I want to change its color without changing the background color using shaders

i have a shader but it change the color of the whole sprite

shader_type canvas_item;
uniform vec4 color: hint_color;

void fragment(){
    COLOR = color;
}

Answer 1

You want to preserve the transparency of the sprite. Get the original color like this: vec4 og_color = texture (TEXTURE, UV) and then set the alpha of the new color to the alpha of the old color.

Comments

thanks it worked! Can you put a shader in a separate file, attach it to different sprites and choose a separate color for each sprite?

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Yes. Right click it in the inspector, make unique, and then save it.