Module box_chrome 

Shared box-drawing primitives for bordered UI components (text entry, selector).

Constants

BORDER_ROWS

Number of border rows in a box (top border + bottom border).

CHROME_WIDTH

Total columns consumed by border chrome: “│ “ + “ │” = 4.

CONTENT_OFFSET

Columns consumed by the left border before content starts (“│ “ = 2).

CORNER_BOTTOM_LEFT

CORNER_BOTTOM_RIGHT

CORNER_TOP_LEFT

CORNER_TOP_RIGHT

HORIZONTAL

INNER_PADDING

Space padding inside the vertical bars (one space each side).

VERTICAL

Functions

bottom_border

Plain bottom border: ╰──────╯

snap_even

Snap a width to the nearest even number, using min_width when rounding would collapse a nonzero value to zero. Used during partial-open animation so the box stays symmetric as it grows.

top_border

Plain top border: ╭──────╮