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Kaleidoscope/TriColor.md

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# Akela-TriColor
![status][st:stable]
[st:stable]: https://img.shields.io/badge/stable-✔-black.png?style=flat&colorA=44cc11&colorB=494e52
[st:broken]: https://img.shields.io/badge/broken-X-black.png?style=flat&colorA=e05d44&colorB=494e52
[st:experimental]: https://img.shields.io/badge/experimental----black.png?style=flat&colorA=dfb317&colorB=494e52
The `TriColor` effect extension is a part of
the [`LEDEffects`][plugin:ledeffects] library, not a stand-alone base library of
its own. It is used to implement the effects in that library.
[plugin:ledeffects]: https://github/Akela-Plugins/Akela-LEDEffects
It is a class that can be used to create LED effects that all follow a similar
pattern: alphas and similar in one color; modifiers, special keys, and half the
function keys in another, and `Esc` in a third (this latter being optional). If
we have a color scheme that follows this pattern, the `TriColor` extension can
make it a lot easier to implement it.
## Using the extension
Because the extension is part of the [`LEDEffects`][plugin:ledeffects] library,
we need to include that header:
```c++
#include <Akela-LEDEffects.h>
```
Then, we simply create a new instance of the `TriColor` class, with appropriate
colors set for the constructor:
```c++
Akela::LEDEffects::TriColor BlackAndWhiteEffect ((cRGB){0x00, 0x00, 0x00},
(cRGB){0xff, 0xff, 0xff},
(cRGB){0x80, 0x80, 0x80});
```
The first argument is the base color, the second is for modifiers and special
keys, the last one is for the `Esc` key. If the last one is omitted, the
extension will use the modifier color for it.