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https://github.com/bevyengine/bevy
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# Objective
Currently text is recomputed unnecessarily on any changes to its color,
which is extremely expensive.
## Solution
Split up `TextStyle` into two separate components `TextFont` and
`TextColor`.
## Testing
I added this system to `many_buttons`:
```rust
fn set_text_colors_changed(mut colors: Query<&mut TextColor>) {
for mut text_color in colors.iter_mut() {
text_color.set_changed();
}
}
```
reports ~4fps on main, ~50fps with this PR.
## Migration Guide
`TextStyle` has been renamed to `TextFont` and its `color` field has
been moved to a separate component named `TextColor` which newtypes
`Color`.
|
||
|---|---|---|
| .. | ||
| borders.rs | ||
| box_shadow.rs | ||
| button.rs | ||
| display_and_visibility.rs | ||
| flex_layout.rs | ||
| font_atlas_debug.rs | ||
| ghost_nodes.rs | ||
| grid.rs | ||
| overflow.rs | ||
| overflow_debug.rs | ||
| relative_cursor_position.rs | ||
| render_ui_to_texture.rs | ||
| scroll.rs | ||
| size_constraints.rs | ||
| text.rs | ||
| text_debug.rs | ||
| text_wrap_debug.rs | ||
| transparency_ui.rs | ||
| ui.rs | ||
| ui_material.rs | ||
| ui_scaling.rs | ||
| ui_texture_atlas.rs | ||
| ui_texture_atlas_slice.rs | ||
| ui_texture_slice.rs | ||
| ui_texture_slice_flip_and_tile.rs | ||
| viewport_debug.rs | ||
| window_fallthrough.rs | ||
| z_index.rs | ||