A crate for writing text in rainbow colors.
```rust use rainbow_text::{ Foreground, Rainbow };
fn main() -> std::io::Result<()> { let rain = Rainbow::default("Hello, World");
rain.write()?;
Ok(())
} ```
```rust use rainbow_text::{ Background, Rainbow };
fn main() -> std::io::Result<()> { let rain = Rainbow::default("Hello, World");
rain.write_bg()?;
Ok(())
} ```
```rust use rainbow_text::{ ChangeText, Foreground, Rainbow };
fn main() -> std::io::Result<()> { let mut rain = Rainbow::default("Hello, World");
rain.write()?;
rain.change_text("Rainbows!");
rain.write()?;
Ok(())
} ```