KvadrantTileGrid
fun KvadrantTileGrid(tiles: List<TileSize>, modifier: Modifier = Modifier, columns: Int = COLUMNS, gap: Dp = KvadrantTheme.metrics.tileGap, tile: @Composable (index: Int, size: TileSize) -> Unit)
The Start screen's packing: a four-column grid where a small tile takes one column, a medium two and a wide all four, and each tile drops onto the first row with room for it.
This is why a Start screen never has a ragged right edge however the tiles are mixed — the grid is in units, not in pixels, and the 12 px gap is the only spacing anywhere in it.