Use 'sketch in' to describe the process of quickly representing visual elements without detail.

Visualize Roughly

'Sketch in' is often used in creative contexts to convey early stages of work.

Creative Progress

Using 'sketch in' implies that the work is not in its final form and will be refined later.

'Sketch in' can mean adding specifics to enhance understanding or completeness.

Use 'sketch in' when developing a concept by adding more context or content.

'Sketch in' when you want to show that details are tentative and subject to change.