Step 1: Go to Appearance > Themes > Add New Theme , then click Upload Theme button
Step 2: Go to Browser then select kt-aaron v.x.x.zip file > select kt-arron zip file to upload
Step 3: Click Install Now to install Aaron
Step 4: Wait for a while until the installation complete then select Activate link to activate theme. Theme has been installed and activated. Beside that you can also click to Live Preview to view this theme