BorderStroke
Outline drawn around a container.
Reused by com.conamobile.pdfkmp.dsl.column, com.conamobile.pdfkmp.dsl.row, com.conamobile.pdfkmp.dsl.box, and com.conamobile.pdfkmp.dsl.card to give them a coloured outline. Pass null instead of a BorderStroke to skip the outline; BorderStroke(0.dp, ...) does the same.