# Objective
- Allow users to customize the line height of text.
- Implements #16085
## Solution
- Add a `line_height` field to `TextFont` to feed into `cosmic_text`'s
`Metrics`.
## Testing
- Tested on my own game, and worked exactly as I wanted.
- My game is only 2D, so I only tested `Text2d`. `Text` still needs
tested, but I imagine it'll work fine.
- An example is available
[here](https://code.cartoon-aa.xyz/Cyborus/custom-line-height-example)
---
## Showcase
<details>
<summary>Click to view showcase</summary>
With font:
```rust
TextFont {
font: /* unimportant */,
font_size: 16.0,
line_height: None,
..default()
}
```
With font:
```rust
TextFont {
font: /* unimportant */,
font_size: 16.0,
line_height: Some(16.0),
..default()
}
```
</details>
## Migration Guide
`TextFont` now has a `line_height` field. Any instantiation of
`TextFont` that doesn't have `..default()` will need to add this field.
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