To change the status of the task, go to the particular task and click on the ‘Actions‘ tab and select ‘Task Status‘ option from the dropdown list.
After selecting an action another tab will be displayed, by clicking on that tab you can see the four types of task status in the dropdown list like In progress, Review, On Hold, Completed. Here you can select a preferred status for the selected task.
Your selected task status also changes the color of the side strip of the task.
You can also change the color you see on specific Task Status for your Slack Workspace. To do so, sign in to TaskOnBot web application and go to Reminder & Tasks Settings section. Here you will see Task Status – Custom Color Notations sub section. Choose a preferred color for specific task status and click in the Save button.
This will change the color strip of all the tasks in your Slack workspace.