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Merge pull request #5181 from macjohnny/patch-1

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Docs: add alpha channel to supported hex color specifiers
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Andrew Murray 2021-02-11 20:47:22 +11:00 committed by GitHub
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docs/reference/ImageColor.rst
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@ -16,8 +16,11 @@ Color Names
The ImageColor module supports the following string formats:
* Hexadecimal color specifiers, given as ``#rgb`` or ``#rrggbb``. For example,
``#ff0000`` specifies pure red.
* Hexadecimal color specifiers, given as ``#rgb``, ``#rgba``, ``#rrggbb`` or
``#rrggbbaa``, where ``r`` is red, ``g`` is green, ``b`` is blue and ``a`` is
alpha (also called 'opacity'). For example, ``#ff0000`` specifies pure red,
and ``#ff0000cc`` specifies red with 80% opacity (``cc`` is 204 in decimal
form, and 204 / 255 = 0.8).
* RGB functions, given as ``rgb(red, green, blue)`` where the color values are
integers in the range 0 to 255. Alternatively, the color values can be given