diff --git a/elements/grid.go b/elements/grid.go
index fc37466..1c2b8ed 100644
--- a/elements/grid.go
+++ b/elements/grid.go
@@ -13,9 +13,15 @@ import "git.tebibyte.media/sashakoshka/tomo/default/config"
 // import "git.tebibyte.media/sashakoshka/tomo/textdraw"
 import "git.tebibyte.media/sashakoshka/tomo/elements/core"
 
+// Cell represents a single cell on the grid.
 type Cell struct {
-	Rune       rune
-	Style      tomo.FontStyle
+	// TODO: we should probably store more information than just a rune
+	// (because emojis and combining characters exist).
+	Rune rune
+
+	// Monospace is assumed here.
+	Style tomo.FontStyle
+	
 	Background tomo.Color
 	Foreground tomo.Color
 }
@@ -31,7 +37,8 @@ func (cell *Cell) initColor () {
 }
 
 // Grid is an array of monospaced character cells. Each one has a foreground and
-// background color.
+// background color. The width and height of the grid is determined by the size
+// of its canvas.
 type Grid struct {
 	*core.Core
 	*core.FocusableCore
@@ -44,8 +51,6 @@ type Grid struct {
 	cellHeight int
 	gridBounds image.Rectangle
 
-	cursor image.Point
-
 	ignorePush bool
 
 	ascent int
@@ -57,6 +62,7 @@ type Grid struct {
 	onResize func ()
 }
 
+// NewGrid creates a new grid element.
 func NewGrid () (element *Grid) {
 	element = &Grid { }
 	element.theme.Case = tomo.C("tomo", "grid")
@@ -68,6 +74,7 @@ func NewGrid () (element *Grid) {
 	return
 }
 
+// Size returns the width in height (in cells) of the grid.
 func (element *Grid) Size () (columns, rows int) {
 	columns = element.stride
 	if element.stride > 0 {
@@ -76,23 +83,27 @@ func (element *Grid) Size () (columns, rows int) {
 	return
 }
 
+// At returns the cell located at the given point, starting at (0, 0).
 func (element *Grid) At (point image.Point) Cell {
 	if !element.inBounds(point) { return Cell { } }
 	return element.cells[element.index(point)].Cell
 }
 
+// Set sets the cell located at the given point, starting at (0, 0).
 func (element *Grid) Set (point image.Point, cell Cell) {
 	if !element.inBounds(point) { return }
 	element.cells[element.index(point)].Cell  = cell
 	element.cells[element.index(point)].clean = false
 }
 
+// Push pushes whatever changes were made to the grid to the screen.
 func (element *Grid) Push () {
 	if !element.ignorePush {
 		element.drawAndPush()
 	}
 }
 
+// OnResize sets a function to be called when the grid is resized.
 func (element *Grid) OnResize (callback func ()) {
 	element.onResize = callback
 }