Ok so~ open "composite.frag"
On line 27:
void main(void) {
vec4 color = texture2D(uSampler, vTextureCoord);
Add this under vec4 color:
vec4 basexx = texture2D(uSampler, vTextureCoord);
Next, scroll down to the bottom where you see:
gl_FragColor = color;
}
Replace the gl_FragColor = color with the following:
gl_FragColor = mix(color, basexx, 0.5);
From here, just edit the "0.5" value until you get a result you like <3