diff --git a/README.md b/README.md
index a501bac..d6c2b33 100644
--- a/README.md
+++ b/README.md
@@ -37,7 +37,7 @@ default-features = false
 ## Features
 
 - Raw mode.
-- Truecolor.
+- TrueColor.
 - 256-color mode.
 - Cursor movement.
 - Color output.
@@ -48,6 +48,7 @@ default-features = false
 - Termios control.
 - Password input.
 - Redox support.
+- Safe `isatty` wrapper.
 - Panic-free error handling.
 - Special keys events (modifiers, special keys, etc.).
 - Allocation-free.
diff --git a/examples/rainbow.rs b/examples/rainbow.rs
index fdc7410..06c2710 100644
--- a/examples/rainbow.rs
+++ b/examples/rainbow.rs
@@ -7,7 +7,7 @@ use termion::input::{TermRead, Key};
 use std::io::{Write, stdout, stdin};
 
 fn rainbow<W: Write>(stdout: &mut W, blue: u8) {
-    write!(stdout, "{}", termion::cursor::Goto(1, 1)).unwrap();
+    write!(stdout, "{}{}", termion::cursor::Goto(1, 1), termion::clear::All).unwrap();
 
     for red in (0..255).step_by(8 as u8) {
         for green in (0..255).step_by(4) {
@@ -28,7 +28,7 @@ fn main() {
            termion::cursor::Goto(1, 1),
            termion::cursor::Hide).unwrap();
 
-    let mut blue = 0u8;
+    let mut blue = 172u8;
 
     for c in stdin.keys() {
         match c.unwrap() {