# Objective
Upgrade to `cosmic-text` 0.13
https://github.com/pop-os/cosmic-text/releases
This should include some performance improvements for layout and system
font loading.
## Solution
Bump version, fix the one changed API.
## Testing
Tested some examples locally, will invoke the example runner.
## Layout Perf
||main fps|cosmic-13 fps|
|-|-|-|
|many_buttons --recompute-text --no-borders|6.79|9.42 🟩 +38.7%|
|many_text2d --no-frustum-culling --recompute|3.19|4.28 🟩 +34.0%|
|many_glyphs --recompute-text|7.09|11.17 🟩 +57.6%|
|text_pipeline |140.15|139.90 ⬜ -0.2%|
## System Font Loading Perf
I tested on macOS somewhat lazily by adding the following system to the
`system_fonts` example from #16365.
<details>
<summary>Expand code</summary>
```rust
fn exit_on_load(
mut reader: EventReader<bevy::text::SystemFontsAvailable>,
mut writer: EventWriter<AppExit>,
) {
for _evt in reader.read() {
writer.write(AppExit::Success);
}
}
```
</details>
And running `hyperfine 'cargo run --release --example system_fonts
--features=system_font'`.
The results were nearly identical with and without this PR cherry-picked
there.
Co-authored-by: Alice Cecile <alice.i.cecile@gmail.com>
81c0900cf2