Because the weeks are presented as a stack of available time, it’s easy to block out days naturally as you think. Take Action & Get a Grip on Social Media & Content Marketing Now! Print out a stack of them and keep them handy for when you need to roughly define project milestones or calculate recurring dates. Right click and select Font. In the pop-up box, you can change the font, font style, font size, and font color. 3. Change the Colors of the Task Bars in Your Gantt Chart Adding color to your Gantt chart can help you visually organize tasks. Download the package you want in the sidebar on the right of the page.