Changing the colour of a branch
When you change the colour of a branch, the colour is applied to the subtopics down the branch and to the line colour or frame colour of the symbols on the branch. If a subtopic has a unique line colour it retains its colour.
When you select multiple topics, the branch colour is applied only to the selected topics.
1.Select the branch.
2.On the Formatting toolbar, click the Line Colour button, then select a colour from the colour palette.
Choose Effect>Branch Colour, then select a colour from the colour palette.