Description:
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The current code samples in the PHP manual online use orange text on a grey background for comments.

As a person with some red-green colorblindness, I find this exceptionally hard to read - to the point I can't read some comments at all.  The red text is slightly better, but the orange is awful.

Would it be possible to change the comment color to something else with more contrast?  It may be worthwhile considering a different background color to enhance the contrast.

I use EditPlus as an editor and its default colors for PHP source are much easier to read with a white background.  Comments are green, and various keywords are red, teal, blue, and brown with violet quoted strings.