Columns

Columns come from a backed enum. Its HasLabel, HasColor and HasIcon implementations become the column header. There is no custom trait to add.

->columns(TaskStatus::class)

Enums that implement Filament's HasDescription get a subtitle under the column name.

Arrays and Column objects

->columns([
    'todo' => 'To do',
    Column::make('doing')->label('In progress')->color('indigo')->icon(Heroicon::OutlinedPlayCircle)->limit(3),
    Column::make('done')->collapsed(),
])

Column method	Purpose
label()	Header text.
color()	Any Tailwind colour name, Filament colour or hex.
icon()	A Heroicon or icon name.
description()	Subtitle under the name.
limit()	WIP limit for the column.
collapsed()	Start collapsed to a rail.

Status column

->statusAttribute('stage')

Needed only when the column isn't called status.

Collapsing

People collapse columns to a rail from the header. The choice is remembered per user.

Colours

Any Tailwind colour name works for columns, badges and details, whether or not your panel registers it.