public fakeColor GetFromARGB(fakeColor background)
{
if (A == 255)
{
return(new fakeColor(R, G, B));
}
var alpha = A / 255.0;
var diff = 1.0 - alpha;
return(new fakeColor(255, (byte)(R * alpha + background.R * diff), (byte)(G * alpha + background.G * diff), (byte)(B * alpha + background.B * diff)));
}
public static fakeColor GetFromARGB(fakeColor background, fakeColor foreground)
{
if (foreground.A == 255)
{
return(foreground);
}
var alpha = foreground.A / 255.0;
var diff = 1.0 - alpha;
return(new fakeColor(255,
(byte)(foreground.R * alpha + background.R * diff),
(byte)(foreground.G * alpha + background.G * diff),
(byte)(foreground.B * alpha + background.B * diff)));
}