How do I show or hide custom colored DNA sequence?
Open the Map and Sequence Options Dialog

To open the Options dialog, click View → Map & Sequence Options... .
Show the Sequence Colors

To show the sequence colors, click the "Show colors" button, then click OK.
This button can also be used to toggle between showing and hiding colors.
View the Sequence Colors

Sequence colors will now be shown in Map and Sequence views.
Hide the Sequence Colors

To hide the sequence colors, click View → Map & Sequence Options... , click the "Show colors" button, then click OK.
Show or Hide Sequence Colors Using the Side Toolbar

Alternatively, click the "Show colors" button in the side toolbar to toggle between showing and hiding sequence colors.