Impossible to select black #000000 with the color picker #212
Description
Expected behaviour
Be able to select 100% black (#000000)
Actual behaviour
When I select the black with the color picker it dosen't work, in the input on the color picker we can read #0 instead of #000000.
The color shown stile the same, it's not black.
Reproduction steps
Add black color to available colors :
highed.meta.colors.push('#000000');
try to add a new color in simple -> appearance by using the color picker.
Try to select the black color.
Editor version
Highcharts JS v8.0.0 (2019-12-10)
Affected browser(s)
Chrome, firefox on windows and macOs