[]
The chart area of a Gantt chart displays the non-working time as well. Gantt chart uses the gray color to indicate the non-working time by default. You can change the draw mode, color, and style pattern of the non-working area using the nonWorkingTime
properties.
To know more about changing the non-working time style, refer to https://demo.mescius.co.kr/spreadjs/learn-spreadjs/features/ganttsheet/styles/nonworking/purejs