Hello! If I'd like to use the same text style globally, how would I define it as a const?

```rust
 let text_style = MonoTextStyleBuilder::new()
        .font(&FONT_6X10)
        .text_color(BinaryColor::On)
        .build();
```

In "regular" Rust, I'd use the lazy_static crate to define a global...but I'm pretty sure there's a better way to do this.

The other option I thought of, was to store the individual properties as consts and then build the style every time I print something to the display, but that seems really inefficient...