Step 1
Login to the SharePoint 2013 site as an administrator (System Account).
Step 2
On clicking the settings the menu near User account (System Account), the context menu shown in Figure 1 will appear. In that item details click the Site settings.
Figure 1: Site Settings
Step 3
Once clicking the Site Settings, the screen shown in Figure 2 will open. In Site Settings, click Change the look.
Figure 2: Site Setting Change
Step 4
The screen shown in Figure 3 will appear. Select your design template. Here I have selected the Green template.
Figure 3: Select Template
Step 5
Click try it out menu item as shown in Figure 4.
Figure 4: Menu Item
Step 6
Click Yes, keep it button as shown in Figure 5.
Figure 5: Keep it button
Finally the theme will be applied to your SharePoint site as shown in Figure 6.
Figure 6: Apply SharePoint Site
Summary
In this article we explored how to change the look of a SharePoint Site.