Barchart axis color

Hi again!
How it is possible to change the color of X and Y axes lines, they are always black.

Thanks in advance
Perez

Hello!
Here you can see all settings for Bar Chart
And here is an example how to change the color of lines: https://webix.com/snippet/28f7a5bb

Thankyou Nastja!
Works like a charm.

Perez