Mark ASTC textures as sRGB;
They don't contain this metadata, but marking as sRGB is more reasonable
than not.
@@ -885,6 +885,7 @@ static Image* loadASTC(Blob* blob) {
image->width = width;
image->height = height;
image->format = format;
+ image->flags = IMAGE_SRGB;
image->layers = 1;
image->levels = 1;
image->blob = blob;
