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Detects whether a terminal supports color, and gives details about that
support. It takes into account the `NO_COLOR` environment variable.
This crate is a Rust port of [@sindresorhus](https://github.com/sindresorhus)'
[NPM package by the same name](https://npm.im/supports-color).
## Example
```rust
use supports_color::Stream;
if let Some(support) = supports_color::on(Stream::Stdout) {
if support.has_16m {
println!("16 million (RGB) colors are supported");
} else if support.has_256 {
println!("256 colors are supported.");
} else if support.has_basic {
println!("Only basic ANSI colors are supported.");
}
} else {
println!("No color support.");
}
```
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