diff --git a/modraw.png b/modraw.png
index 985607b..0de478c 100644
Binary files a/modraw.png and b/modraw.png differ
diff --git a/src/main.rs b/src/main.rs
index 95806d7..f2a48d0 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -7,11 +7,11 @@ use rand::Rng;
 #[derive(Parser, Debug)]
 struct Args {
     /// width and height of the image
-    #[arg(short, long, default_value_t = 2000)]
-    width: u32,
+    #[arg(short, long)]
+    width: Option<u32>,
 
     /// The multiplicator
-    #[arg(short, default_value_t = 96)]
+    #[arg(short, default_value_t = 36)]
     modulo: u32,
 
     /// Set verbose mode
@@ -21,27 +21,57 @@ struct Args {
     /// Optional 4x pixel mode
     #[arg(short, long, default_value_t = false)]
     pix4: bool,
+
+    /// Inherit color from last pixel
+    #[arg(short, long, default_value_t = false)]
+    inherit_last: bool,
 }
 
 fn main() {
     let args = Args::parse();
-    let mut img: ImageBuffer<Rgb<u8>, Vec<u8>> = ImageBuffer::new(args.width, args.width);
+    let mut img: ImageBuffer<Rgb<u8>, Vec<u8>> = ImageBuffer::new(args.width.unwrap_or(args.modulo * 10), args.width.unwrap_or(args.modulo * 10));
     let mut colors: Vec<[u8; 3]> = vec![];
     if args.pix4 {
         for x in 0..(img.width() / 2) {
             for y in 0..(img.height() / 2) {
                 let result: usize = (x * y % args.modulo).try_into().unwrap();
+                let mut color;
                 if colors.get(result).is_some() {
-                    img.put_pixel(2 * x, 2 * y, Rgb(colors[(x * y % args.modulo) as usize]));
-                    img.put_pixel(2 * x + 1, 2 * y, Rgb(colors[(x * y % args.modulo) as usize]));
-                    img.put_pixel(2 * x, 2 * y + 1, Rgb(colors[(x * y % args.modulo) as usize]));
-                    img.put_pixel(2 * x + 1, 2 * y + 1, Rgb(colors[(x * y % args.modulo) as usize]));
+                    color = Rgb(colors[result]);
+                    if args.inherit_last {
+                        let color_before;
+                        // TODO: highly review this
+                        // WARN: not usable yet
+                        if x == 0 {
+                            if y == 0 {
+                                color_before = &Rgb([0,0,0]);
+                            // } else if y == img.width() {
+                            //     color_before = img.get_pixel(img.width(), y - 2);
+                            } else {
+                                color_before = img.get_pixel(x, y - 1);
+                            }
+                        } else if x == 1 {
+                            color_before = img.get_pixel(x - 1, y);
+                        } else {
+                            color_before = img.get_pixel(x - 2, y);
+                        }
+                        color = Rgb([
+                            color[0] / 2 + color_before[0] / 2,
+                            color[1] / 2 + color_before[1] / 2,
+                            color[2] / 2 + color_before[2] / 2,
+                        ])
+                    }
+                    img.put_pixel(2 * x, 2 * y, color);
+                    img.put_pixel(2 * x + 1, 2 * y, color);
+                    img.put_pixel(2 * x, 2 * y + 1, color);
+                    img.put_pixel(2 * x + 1, 2 * y + 1, color);
                 } else {
                     colors.insert(result, [generate_random(0, 255), generate_random(0, 255), generate_random(0, 255)]);
-                    img.put_pixel(2 * x, 2 * y, Rgb(colors[(x * y % args.modulo) as usize]));
-                    img.put_pixel(2 * x + 1, 2 * y, Rgb(colors[(x * y % args.modulo) as usize]));
-                    img.put_pixel(2 * x, 2 * y + 1, Rgb(colors[(x * y % args.modulo) as usize]));
-                    img.put_pixel(2 * x + 1, 2 * y + 1, Rgb(colors[(x * y % args.modulo) as usize]));
+                    color = Rgb(colors[result]);
+                    img.put_pixel(2 * x, 2 * y, color);
+                    img.put_pixel(2 * x + 1, 2 * y, color);
+                    img.put_pixel(2 * x, 2 * y + 1, color);
+                    img.put_pixel(2 * x + 1, 2 * y + 1, color);
                 }
             }
         }