Make outline's opacity independent on window's opacity

[matinlotfali]

This is to fix #221

[scgm0]

There are some side effects....

[matinlotfali]

@scgm0 can you test #229 and see if it fixes it?

[scgm0]

@scgm0 can you test #229 and see if it fixes it?

Didn't solve the problem, I tried using vec4 outlineOverlay = vec4(mix(tex.rgb, outlineColor.rgb, outlineColor.a), tex.a); and found that there is still a very shallow outline, maybe there is something else affecting tex.a?

[matinlotfali]

Instead of tex.a > 0.0 in the if condition, can you try tex.a > 0.1?

[scgm0]

Instead of tex.a > 0.0 in the if condition, can you try tex.a > 0.1?

It played a role!

[matinlotfali]

Fantastic. I will merge it.