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0.14 migration: Slightly more help for users who had their colors changed #1392

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Jun 12, 2024
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0.14 migration: Slightly more help for users who had their colors changed #1392

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Slightly more help for users who had their colors changed
rparrett Jun 12, 2024
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rparrett Jun 12, 2024
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CSS baby
alice-i-cecile Jun 12, 2024
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10 changes: 9 additions & 1 deletion ...tent/0.14/migration-guides/12163_Migrate_from_LegacyColor_to_bevy_colorColor.md
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Expand Up @@ -117,7 +117,7 @@ Alpha, also known as transparency, used to be referred to by the letter `a`. It

#### CSS Constants

The various CSS color constants are no longer stored directly on `Color`. Instead, they’re defined in the `Srgba` color space, and accessed via `bevy::color::palettes`. Call `.into()` on them to convert them into a `Color` for quick debugging use. Please note that these palettes are not necessarily 1:1 with the constants defined previously as some names and colors have been changed. If you need the same color as before, consider copying the constant into your own code.
The various CSS color constants are no longer stored directly on `Color`. Instead, they’re defined in the `Srgba` color space, and accessed via `bevy::color::palettes`. Call `.into()` on them to convert them into a `Color` for quick debugging use.

```rust
// Before
Expand All @@ -129,6 +129,14 @@ use bevy::color::palettes::css::BLUE;
let color = BLUE;
```

Please note that `palettes::css` is not necessarily 1:1 with the constants defined previously as some names and colors have been changed to conform with the CSS spec. If you need the same color as before, consult the table below or use the color values from the [old constants](https://github.com/bevyengine/bevy/blob/v0.13.2/crates/bevy_render/src/color/mod.rs#L60).

|0.13|0.14|
|-|-|
|`GREEN`|`LIMEGREEN`|
|`PINK`|`DEEP_PINK`|
|`DARK_GRAY`|`Srgba::gray(0.25)`|

#### Switch to `LinearRgba`

`WireframeMaterial`, `ExtractedUiNode`, `ExtractedDirectionalLight`, `ExtractedPointLight`, `ExtractedSpotLight`, and `ExtractedSprite` now store a `LinearRgba` rather than a polymorphic `Color`. Furthermore, `Color` no longer implements `AsBindGroup`. You should store a `LinearRgba` instead to avoid conversion costs.