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Enable custom colors with environment variables (#248)

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* Enable custom colors with environment variables

* Rename HEXYL_XYZ env vars to HEXYL_COLOR_XYZ
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Dan Hipschman authored and GitHub committed 2025-06-16 22:41:37 +02:00
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README.md
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@@ -193,6 +193,22 @@ scoop install hexyl
x env use hexyl
```
## Configuration
`hexyl` colors can be configured via environment variables. The variables used are as follows:
* `HEXYL_COLOR_ASCII_PRINTABLE`: Any non-whitespace printable ASCII character
* `HEXYL_COLOR_ASCII_WHITESPACE`: Whitespace such as space or newline (only visible in middle panel with byte values)
* `HEXYL_COLOR_ASCII_OTHER`: Any other ASCII character (< `0x80`) besides null
* `HEXYL_COLOR_NULL`: The null byte (`0x00`)
* `HEXYL_COLOR_NONASCII`: Any non-ASCII byte (> `0x7F`)
* `HEXYL_COLOR_OFFSET`: The lefthand file offset
The colors can be any of the 8 standard terminal colors: `black`, `blue`, `cyan`, `green`, `magenta`, `red`,
`yellow` and `white`. The "bright" variants are also supported (e.g., `bright blue`). Additionally, you can use
the RGB hex format, `#abcdef`. For example, `HEXYL_COLOR_ASCII_PRINTABLE=blue HEXYL_COLOR_ASCII_WHITESPACE="bright green"
HEXYL_COLOR_ASCII_OTHER="#ff7f99"`.
## License
Licensed under either of