diff --git a/src/main.rs b/src/main.rs
index e60beb1..29dbfea 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -33,7 +33,6 @@ async fn main() -> bluer::Result<()> {
     let spectacle = Spectacle::from(config);
     let spectacle = Arc::new(Mutex::new(spectacle));
 
-
     let adapter = bluetooth::create_session().await?;
     let (tx_scan, rx_scan) = mpsc::channel(3);
 
diff --git a/src/patterns.rs b/src/patterns.rs
index 48dcdb2..e85af09 100644
--- a/src/patterns.rs
+++ b/src/patterns.rs
@@ -1,27 +1,29 @@
-mod scanner;
-mod fade;
+mod blink;
 mod color_wipe;
-mod rainbow;
+mod fade;
+mod fade_random;
+mod fade_unstable;
 mod fill_random;
 mod fill_unstable;
-mod blink;
 mod rain;
-mod fade_random;
+mod rainbow;
+mod scanner;
 
-use serde_derive::{Deserialize, Serialize};
-use std::fmt;
-use std::ops::{AddAssign, Div, Index, IndexMut, SubAssign};
-use rand::Rng;
-use rand::rngs::ThreadRng;
 use crate::patterns::blink::Blink;
 use crate::patterns::color_wipe::ColorWipe;
 use crate::patterns::fade::Fade;
 use crate::patterns::fade_random::FadeRandom;
+use crate::patterns::fade_unstable::FadeUnstable;
 use crate::patterns::fill_random::FillRandom;
 use crate::patterns::fill_unstable::FillUnstable;
 use crate::patterns::rain::Rain;
 use crate::patterns::rainbow::Rainbow;
 use crate::patterns::scanner::Scanner;
+use rand::rngs::ThreadRng;
+use rand::Rng;
+use serde_derive::{Deserialize, Serialize};
+use std::fmt;
+use std::ops::{AddAssign, Div, Index, IndexMut, SubAssign};
 
 #[derive(Serialize, Deserialize, Debug, Eq, Hash, PartialEq, Copy, Clone)]
 #[serde(tag = "type")]
@@ -34,10 +36,11 @@ pub(crate) enum Patterns<const N: usize> {
     FillUnstable(FillUnstable<N>),
     Blink(Blink<N>),
     Rain(Rain<N>),
-    FadeRandom(FadeRandom<N>)
+    FadeRandom(FadeRandom<N>),
+    FadeUnstable(FadeUnstable<N>),
 }
 
-pub trait Pattern : Iterator {
+pub trait Pattern: Iterator {
     type Strip;
 
     fn init(&mut self) -> Option<Self::Strip>;
@@ -58,6 +61,7 @@ impl<const N: usize> Iterator for Patterns<N> {
             Patterns::Blink(p) => p.next(),
             Patterns::Rain(p) => p.next(),
             Patterns::FadeRandom(p) => p.next(),
+            Patterns::FadeUnstable(p) => p.next(),
         }
     }
 }
@@ -76,6 +80,7 @@ impl<const N: usize> Pattern for Patterns<N> {
             Patterns::Blink(p) => p.init(),
             Patterns::Rain(p) => p.init(),
             Patterns::FadeRandom(p) => p.init(),
+            Patterns::FadeUnstable(p) => p.init(),
         }
     }
 
@@ -90,6 +95,7 @@ impl<const N: usize> Pattern for Patterns<N> {
             Patterns::Blink(p) => p.is_last_iteration(),
             Patterns::Rain(p) => p.is_last_iteration(),
             Patterns::FadeRandom(p) => p.is_last_iteration(),
+            Patterns::FadeUnstable(p) => p.is_last_iteration(),
         }
     }
 }
@@ -164,11 +170,7 @@ impl PixelColor {
             green = self.green.saturating_sub(green_delta);
             blue = self.blue.saturating_sub(blue_delta);
         }
-        PixelColor {
-            red,
-            green,
-            blue
-        }
+        PixelColor { red, green, blue }
     }
 }
 
@@ -210,10 +212,12 @@ impl<const N: usize> Strip<N> {
     }
 
     pub fn new(color: PixelColor) -> Strip<N> {
-        Strip { 0: [Some(color); N] }
+        Strip {
+            0: [Some(color); N],
+        }
     }
 
     pub fn fill(&mut self, color: PixelColor) {
         self.0.fill(Some(color));
     }
-}
\ No newline at end of file
+}
diff --git a/src/patterns/blink.rs b/src/patterns/blink.rs
index f6ca981..fdf732b 100644
--- a/src/patterns/blink.rs
+++ b/src/patterns/blink.rs
@@ -1,7 +1,7 @@
 use crate::patterns::fade::Fade;
-use crate::Strip;
-use serde::{Serialize, Deserialize};
 use crate::patterns::Pattern;
+use crate::Strip;
+use serde::{Deserialize, Serialize};
 
 /// # Blink
 ///
@@ -23,7 +23,7 @@ impl<const N: usize> Pattern for Blink<N> {
 
     fn is_last_iteration(&self) -> bool {
         match self.max_iteration {
-            None => { false }
+            None => false,
             Some(max_iter) => {
                 if self.current_iteration >= max_iter {
                     true
@@ -43,7 +43,7 @@ impl<const N: usize> Iterator for Blink<N> {
         match value {
             None => {
                 if self.is_last_iteration() {
-                    return  None;
+                    return None;
                 }
                 self.current_iteration += 1;
                 self.fade.current_iteration = 0;
@@ -53,4 +53,4 @@ impl<const N: usize> Iterator for Blink<N> {
             Some(value) => Some(value),
         }
     }
-}
\ No newline at end of file
+}
diff --git a/src/patterns/color_wipe.rs b/src/patterns/color_wipe.rs
index a8ff360..05e5e63 100644
--- a/src/patterns/color_wipe.rs
+++ b/src/patterns/color_wipe.rs
@@ -1,6 +1,6 @@
 use crate::patterns::{Pattern, PixelColor};
 use crate::Strip;
-use serde::{Serialize, Deserialize};
+use serde::{Deserialize, Serialize};
 
 /// # Colorwipe pattern
 /// every pattern implement the iterator trait
@@ -33,7 +33,7 @@ impl<const N: usize> Pattern for ColorWipe<N> {
 
     fn is_last_iteration(&self) -> bool {
         match self.max_iteration {
-            None => { false }
+            None => false,
             Some(max_iter) => {
                 if self.current_iteration >= max_iter {
                     true
@@ -59,12 +59,10 @@ impl<const N: usize> Iterator for ColorWipe<N> {
         }
         let iteration = self.current_iteration % N;
 
-
-
         for i in 0..iteration {
             strip[i] = Some(self.color);
         }
         self.current_iteration += 1;
         Some(strip)
     }
-}
\ No newline at end of file
+}
diff --git a/src/patterns/fade.rs b/src/patterns/fade.rs
index d660846..ddc8371 100644
--- a/src/patterns/fade.rs
+++ b/src/patterns/fade.rs
@@ -1,6 +1,6 @@
 use crate::patterns::{Pattern, PixelColor};
 use crate::Strip;
-use serde::{Serialize, Deserialize};
+use serde::{Deserialize, Serialize};
 
 /// # fade pattern
 /// fade from one color to an other
diff --git a/src/patterns/fade_random.rs b/src/patterns/fade_random.rs
index ca21799..f5bf2c5 100644
--- a/src/patterns/fade_random.rs
+++ b/src/patterns/fade_random.rs
@@ -1,7 +1,7 @@
 use crate::patterns::fade::Fade;
-use crate::Strip;
-use serde::{Serialize, Deserialize};
 use crate::patterns::Pattern;
+use crate::Strip;
+use serde::{Deserialize, Serialize};
 
 /// # Blink
 ///
@@ -24,7 +24,7 @@ impl<const N: usize> Pattern for FadeRandom<N> {
 
     fn is_last_iteration(&self) -> bool {
         match self.max_iteration {
-            None => { false }
+            None => false,
             Some(max_iter) => {
                 if self.current_iteration >= max_iter {
                     true
@@ -42,20 +42,19 @@ impl<const N: usize> Iterator for FadeRandom<N> {
     fn next(&mut self) -> Option<Self::Item> {
         let strip = self.fade.next();
         match strip {
-            None => { None }
+            None => None,
             Some(mut fade) => {
                 let rng = rand::thread_rng();
                 for i in 0..N {
                     match fade[i] {
-                        None => { }
+                        None => {}
                         Some(pixel) => {
                             fade[i] = Some(pixel.random_delta(self.stability, &mut rng.clone()))
                         }
                     }
-
                 }
                 Some(fade)
             }
         }
     }
-}
\ No newline at end of file
+}
diff --git a/src/patterns/fade_unstable.rs b/src/patterns/fade_unstable.rs
new file mode 100644
index 0000000..68ec6ba
--- /dev/null
+++ b/src/patterns/fade_unstable.rs
@@ -0,0 +1,54 @@
+use crate::patterns::fade::Fade;
+use crate::patterns::Pattern;
+use crate::Strip;
+use serde::{Deserialize, Serialize};
+
+/// # Blink
+///
+/// fade from one color to an other then go back several times
+#[derive(Serialize, Deserialize, Debug, Eq, Hash, PartialEq, Copy, Clone)]
+pub struct FadeUnstable<const N: usize> {
+    #[serde(default)]
+    pub(crate) current_iteration: usize,
+    pub(crate) max_iteration: Option<usize>,
+    pub(crate) stability: usize,
+    fade: Fade<N>,
+}
+
+impl<const N: usize> Pattern for FadeUnstable<N> {
+    type Strip = Strip<N>;
+
+    fn init(&mut self) -> Option<Self::Strip> {
+        None
+    }
+
+    fn is_last_iteration(&self) -> bool {
+        match self.max_iteration {
+            None => false,
+            Some(max_iter) => {
+                if self.current_iteration >= max_iter {
+                    true
+                } else {
+                    false
+                }
+            }
+        }
+    }
+}
+
+impl<const N: usize> Iterator for FadeUnstable<N> {
+    type Item = Strip<N>;
+
+    fn next(&mut self) -> Option<Self::Item> {
+        let strip = self.fade.next();
+        match strip {
+            None => None,
+            Some(fade) => {
+                let mut rng = rand::thread_rng();
+                let pixel = fade[0].unwrap().random_delta(self.stability, &mut rng);
+
+                Some(Strip::new(pixel))
+            }
+        }
+    }
+}
diff --git a/src/patterns/fill_random.rs b/src/patterns/fill_random.rs
index d4ec092..e12ee13 100644
--- a/src/patterns/fill_random.rs
+++ b/src/patterns/fill_random.rs
@@ -1,6 +1,6 @@
 use crate::patterns::{Pattern, PixelColor};
 use crate::Strip;
-use serde::{Serialize, Deserialize};
+use serde::{Deserialize, Serialize};
 
 /// # FillRandom
 ///
@@ -23,7 +23,7 @@ impl<const N: usize> Pattern for FillRandom<N> {
 
     fn is_last_iteration(&self) -> bool {
         match self.max_iteration {
-            None => { false }
+            None => false,
             Some(max_iter) => {
                 if self.current_iteration >= max_iter {
                     true
@@ -52,4 +52,4 @@ impl<const N: usize> Iterator for FillRandom<N> {
         self.current_iteration += 1;
         Some(strip)
     }
-}
\ No newline at end of file
+}
diff --git a/src/patterns/fill_unstable.rs b/src/patterns/fill_unstable.rs
index efc6599..209b6e1 100644
--- a/src/patterns/fill_unstable.rs
+++ b/src/patterns/fill_unstable.rs
@@ -1,6 +1,6 @@
 use crate::patterns::{Pattern, PixelColor};
 use crate::Strip;
-use serde::{Serialize, Deserialize};
+use serde::{Deserialize, Serialize};
 
 /// # FillUnstable
 ///
@@ -23,7 +23,7 @@ impl<const N: usize> Pattern for FillUnstable<N> {
 
     fn is_last_iteration(&self) -> bool {
         match self.max_iteration {
-            None => { false }
+            None => false,
             Some(max_iter) => {
                 if self.current_iteration >= max_iter {
                     true
@@ -48,4 +48,4 @@ impl<const N: usize> Iterator for FillUnstable<N> {
         self.current_iteration += 1;
         Some(Strip::<N>::new(unstable_color))
     }
-}
\ No newline at end of file
+}
diff --git a/src/patterns/rain.rs b/src/patterns/rain.rs
index 990e4ae..973fb4d 100644
--- a/src/patterns/rain.rs
+++ b/src/patterns/rain.rs
@@ -1,7 +1,7 @@
-use rand::Rng;
 use crate::patterns::{Pattern, PixelColor};
 use crate::Strip;
-use serde::{Serialize, Deserialize};
+use rand::Rng;
+use serde::{Deserialize, Serialize};
 
 /// # rain pattern
 /// randomly fall colors from top or bottom.
@@ -23,7 +23,7 @@ pub struct Rain<const N: usize> {
     pub(crate) stability: usize,
     pub(crate) lines: usize,
     #[serde(skip)]
-    drops : Strip<N>,
+    drops: Strip<N>,
 }
 
 impl<const N: usize> Pattern for Rain<N> {
@@ -40,7 +40,7 @@ impl<const N: usize> Pattern for Rain<N> {
 
     fn is_last_iteration(&self) -> bool {
         match self.max_iteration {
-            None => { false }
+            None => false,
             Some(max_iter) => {
                 if self.current_iteration >= max_iter {
                     true
@@ -58,17 +58,17 @@ impl<const N: usize> Iterator for Rain<N> {
     fn next(&mut self) -> Option<Self::Item> {
         let mut strip = Strip::<N>::default();
 
-        for i in 0..(N-self.lines) {
-            strip[i+self.lines] = self.drops[i];
+        for i in 0..(N - self.lines) {
+            strip[i + self.lines] = self.drops[i];
         }
         let mut rng = rand::thread_rng();
         for i in 0..self.lines {
             if rng.gen_bool(self.stability as f64 / 100 as f64) {
                 strip[i] = Some(self.color);
             } else {
-                let c = strip[i+self.lines];
+                let c = strip[i + self.lines];
                 if self.background_color != c && c != Some(PixelColor::default()) {
-                    strip[i] = Some(strip[i+self.lines].unwrap()/ 2);
+                    strip[i] = Some(strip[i + self.lines].unwrap() / 2);
                 } else {
                     strip[i] = self.background_color;
                 }
@@ -79,4 +79,4 @@ impl<const N: usize> Iterator for Rain<N> {
         self.current_iteration += 1;
         Some(strip)
     }
-}
\ No newline at end of file
+}
diff --git a/src/patterns/rainbow.rs b/src/patterns/rainbow.rs
index 590f9af..fd89b4c 100644
--- a/src/patterns/rainbow.rs
+++ b/src/patterns/rainbow.rs
@@ -1,6 +1,6 @@
 use crate::patterns::{Pattern, PixelColor};
 use crate::Strip;
-use serde::{Serialize, Deserialize};
+use serde::{Deserialize, Serialize};
 
 /// # Rainbow pattern
 ///
@@ -29,7 +29,7 @@ impl<const N: usize> Pattern for Rainbow<N> {
 
     fn is_last_iteration(&self) -> bool {
         match self.max_iteration {
-            None => { false }
+            None => false,
             Some(max_iter) => {
                 if self.current_iteration >= max_iter {
                     true
@@ -92,4 +92,4 @@ fn wheel(index: u8) -> PixelColor {
             }
         }
     }
-}
\ No newline at end of file
+}
diff --git a/src/patterns/scanner.rs b/src/patterns/scanner.rs
index bfd2022..00789dc 100644
--- a/src/patterns/scanner.rs
+++ b/src/patterns/scanner.rs
@@ -1,6 +1,6 @@
 use crate::patterns::{Pattern, PixelColor};
 use crate::Strip;
-use serde::{Serialize, Deserialize};
+use serde::{Deserialize, Serialize};
 
 /// # scanner pattern
 /// color one pixel with a color and leave a train of this color fading to black
@@ -18,7 +18,7 @@ pub struct Scanner<const N: usize> {
     pub(crate) max_iteration: Option<usize>,
 }
 
-impl<const N:usize> Pattern for Scanner<N> {
+impl<const N: usize> Pattern for Scanner<N> {
     type Strip = Strip<N>;
 
     fn init(&mut self) -> Option<Self::Strip> {
@@ -31,7 +31,7 @@ impl<const N:usize> Pattern for Scanner<N> {
 
     fn is_last_iteration(&self) -> bool {
         match self.max_iteration {
-            None => { false }
+            None => false,
             Some(max_iter) => {
                 if self.current_iteration >= max_iter {
                     true
@@ -51,7 +51,7 @@ impl<const N: usize> Iterator for Scanner<N> {
             return None;
         }
 
-        let mut strip : Strip<N>;
+        let mut strip: Strip<N>;
 
         if let Some(color) = self.background_color {
             strip = Strip::new(color);
@@ -74,4 +74,4 @@ impl<const N: usize> Iterator for Scanner<N> {
         self.current_iteration += 1;
         Some(strip)
     }
-}
\ No newline at end of file
+}
diff --git a/src/runner.rs b/src/runner.rs
index 5450d29..a714f2b 100644
--- a/src/runner.rs
+++ b/src/runner.rs
@@ -1,5 +1,5 @@
 use crate::config::Config;
-use crate::patterns::{Patterns, PixelColor, Pattern};
+use crate::patterns::{Pattern, Patterns, PixelColor};
 use crate::Strip;
 use bluer::Address;
 use serde::{Deserialize, Serialize};
@@ -10,9 +10,8 @@ use std::time::Duration;
 use tokio::sync::watch::{Receiver, Sender};
 
 pub(crate) mod period {
-    use std::time::Duration;
     use serde::{de::Error as _, Deserialize, Deserializer};
-
+    use std::time::Duration;
 
     /// Custom deserializer for period from millisecond value
     ///
@@ -23,11 +22,12 @@ pub(crate) mod period {
     /// returns: Result<Duration, <D as Deserializer>::Error>
     ///
     pub fn deserialize<'de, D>(deserializer: D) -> Result<Duration, D::Error>
-        where
-            D: Deserializer<'de>,
+    where
+        D: Deserializer<'de>,
     {
         String::deserialize(deserializer)?
-            .parse::<u64>().and_then(|d| Ok(Duration::from_millis(d)))
+            .parse::<u64>()
+            .and_then(|d| Ok(Duration::from_millis(d)))
             .map_err(|e| D::Error::custom(format!("{}", e)))
     }
 }
@@ -35,14 +35,12 @@ pub(crate) mod period {
 #[derive(Serialize, Deserialize, Debug, Eq, Hash, PartialEq, Copy, Clone)]
 pub struct Context<const N: usize> {
     pub(crate) pattern: Patterns<N>,
-    #[serde(deserialize_with  = "period::deserialize")]
+    #[serde(deserialize_with = "period::deserialize")]
     pub period: Duration,
 }
 
 pub(crate) type DeviceSequence<const N: usize> = Vec<Context<N>>;
 
-
-
 pub async fn runner_loop<const N: usize>(runner: DeviceSequence<N>, tx: Sender<Strip<N>>) {
     let mut background = Strip::<N>::default();
     for mut context in runner {
@@ -151,7 +149,6 @@ impl<const N: usize> Spectacle<N> {
         }
         joinhandles
     }
-
 }
 
 impl<const N: usize> From<Config<N>> for Spectacle<N> {
@@ -178,7 +175,6 @@ impl<const N: usize> From<Config<N>> for Spectacle<N> {
     }
 }
 
-
 #[cfg(test)]
 mod tests {
     use super::*;
@@ -188,24 +184,24 @@ mod tests {
         let pixel_entry = PixelColor {
             red: 10,
             green: 10,
-            blue: 10
+            blue: 10,
         };
 
         let pixel_mask = PixelColor {
             red: 20,
             green: 20,
-            blue: 20
+            blue: 20,
         };
 
-        let mut entry = Strip::<5>::new(pixel_entry) ;
+        let mut entry = Strip::<5>::new(pixel_entry);
         entry[0] = None;
         entry[1] = None;
 
-        let mut mask = Strip::<5>::new(pixel_mask) ;
+        let mut mask = Strip::<5>::new(pixel_mask);
         mask[0] = None;
 
         let mut expected = entry.clone();
         expected[1] = Some(pixel_mask);
         assert_eq!(expected, super::apply_mask(mask, entry));
     }
-}
\ No newline at end of file
+}