Noted, I'll do all of these today - but it may require a breaking version update to 0.3.0. It chooses the character by converting the RGB to grayscale and mapp

Noted, I'll do all of these today - but it may require a breaking version update to 0.3.0. It chooses the character by converting the RGB to grayscale and mapping the 0-255 range to the given charsets length: let as_grayscale = (pixel[0] as f64 * 0.299) + (pixel[1] as f64 * 0.587) + (pixel[2] as f64 * 0.114); // TODO: Use alpha channel to determine if pixel is transparent? let char_index = ((as_grayscale / 255.0) * (self.options.charset.len() as f64 - 1.0)) as usize; if self.options.invert { self.options.charset[self.options.charset.len() - 1 - char_index] } else { self.options.charset[char_index] }