Go to "Plugin Customization" in the left menu of the Administrator Portal to customise SlideContent to your enterprise.
1) name of plugin in the PowerPoint ribbon can be changed in "Edit Corporate" settings
2) logo shown in the Admistrator Portal can be changed in "Edit Corporate" settings
3) Icons in the PowerPoint ribbon (Switch Font, Font Color,....): Select the name of the icon you want to upload a new icon and select a graphical file. When users login to the plugin, they will see the new icons.