user avoid having to write in the rgb values he wants. Below,
a simple CP code.
The result is a little surprising because each value is a long
decimal. But it is easily amenable to alteraration with Math functions.
(Silly me; decimals can go to zero when rounded. 😬)
Today's rpoblem: integrating a ColorPicker!
* * *
GridPane layout assigns position row, column; both starting at 0.
If one assigns a border, there is no background color, and vice-versa!?
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