You can make simple changes to the theme and design of your Yammer Network in the Network Admin area, which provides a simple interface in which to make your changes.
Select Network Colours
Select from a pre-built list of colours, or specify the exact colours that match your corporate palette. The header bar will be updated to reflect the colour chosen.
Customise Network Header and Logo
- Apply a logo that will be visible on the top-left of every page within your network
- This logo should not exceed 40 pixels in width and 160 pixels in height
- Apply graphical text or imagery to the central area of your network's header
- The image used here should not exceed 56 pixels in height and 1200 pixels in width