Selected modules come with what is called a halo effect. Two types are available: classic and alternative. The halo type is set in the Preferences, see Section 4.3.8, “Preferences — Network Appearance”.

Figure 3.6. Halo Appearances — Classic and Alternative

The classic halo shows a weaker halo for attached modules; the alternative halo shows the same strength for all modules. For both types, selected and attached modules can be made more visible by changing the colors in the Preferences.

Figure 3.7. Alternative Halo with Changed Colors