spectre.console/docs/input/appendix/borders.md

Title: Borders Order: 2

There is different built-in borders you can use for tables and panels.

Table borders

Example

To set a table border to SimpleHeavy:

var table = new Table();
table.Border = TableBorder.SimpleHeavy;

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Panel borders

Example

To set a panel border to Rounded:

var panel = new Panel("Hello World");
panel.Border = BoxBorder.Rounded;