Two years ago, I published a blog describing the various graphical elements that exist in 'Project Planning' application. 

Using graphical elements in a project streamlines project management by making the timeline and task relationships clearer, facilitates communication, by giving all stakeholders a simple, real-time and clear overview of the project status, and improve overall decision-making by identifying late tasks and prioritizing the most sensitive activities.

The following table lists the additional graphical elements that have been added in the 'Project Planning' application since my previous blog.

Visual elements in Schedule View:

Visual Element	What does it indicate
	Milestone
	Indicates start milestone for a project
	Indicates end milestone for a project
	When milestones are too close together to display individually, they are displayed stacked in the timeline. The number indicates the number of milestones.
	Shadow milestone with dashed boundaries indicates a milestone belong to a project which is specified in the 'Contributes to' field of the current project.
	Gate
	Pin icon indicates a task, milestone, gate with a fixed date that the scheduler cannot move, but the user can move manually
	Calendar Icon indicates the task has a constraints set to 'No Earlier than or 'No later than
	The task has a conflict with the project start date
	The task has a conflict with the project end date
	Red circle around a person's image indicates that the person is overloaded. This can happen when the project scheduling strategy is set to 'Time and Resource', and the person is assigned to more than one task at the same time.

The following video illustrates the visual elements mentioned in the above table: