[ruby-core:120149] [Ruby master Bug#20940] Colored syntax error from prism

Issue #20940 has been reported by ko1 (Koichi Sasada).

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Bug #20940: Colored syntax error from prism
https://bugs.ruby-lang.org/issues/20940

* Author: ko1 (Koichi Sasada)
* Status: Open
* Assignee: matz (Yukihiro Matsumoto)
* Target version: 3.4
* Backport: 3.1: UNKNOWN, 3.2: UNKNOWN, 3.3: UNKNOWN
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Prism shows syntax error with coloring.
But we have long avoided coloring Ruby for reasons such as color weakness.
Can we release next Ruby 3.4.0 with colored syntax errors?

![colored_syntax_error1](clipboard-202412101454-v5ydy.png)
![colored_syntax_error2](clipboard-202412101456-u1hrp.png)

NOTE:

* irb supports `NO_COLOR` environment variable ([NO_COLOR: disabling ANSI color output by default](https://no-color.org/))

---Files--------------------------------
clipboard-202412101454-v5ydy.png (20.6 KB)
clipboard-202412101456-u1hrp.png (10.7 KB)


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