On every factline platform there is a number of icons (symbols) to lighten its use. To incorporate the icons in the design of each individual platform there is a couple of sets in different colors.
Go to P-admin > Interface > Fact icons
The default icon set is the blue one. In padmin you can select a set with a different color, e.g. red or grey.
To open edit settings, you should open Interface > Fact Icons in Padmin.