On 1/21/2017 7:53 AM, Thomas de Groot wrote:
> On 20-1-2017 22:04, Cousin Ricky wrote:
>> On 2017-01-20 03:53 AM (-4), Thomas de Groot wrote:
>>> On 20-1-2017 5:35, Cousin Ricky wrote:
>>>>
>>>> #macro DotGray (Color)
>>>>   #local C = color Color;
>>>>   (0.2126 * C.red + 0.7152 * C.green + 0.0722 * C.blue) // ITU-R BT.709
>>>> #end
>>>
>>> [scribbles with pencil on a greasy scrap of wrapping paper, and tacks it
>>> to an overweight folder]
>>>
>>> Done!
>>
>> Ah, and fortunately for those of you not under Donald Trump's
>> jurisdiction, this version also works:
>>
>> #macro DotGrey (Colour)
>>   #local C = colour Colour;
>>   (0.2126 * C.red + 0.7152 * C.green + 0.0722 * C.blue) // ITU-R BT.709
>> #end
>>
>
> Obviously. I shall use the other one in solidarity.
>

Of Trump? ^_^

-- 

Regards
     Stephen

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