diff --git a/src/UI/Dialogs/PreviewDialog.gd b/src/UI/Dialogs/PreviewDialog.gd
index 997d00f..22a6943 100644
--- a/src/UI/Dialogs/PreviewDialog.gd
+++ b/src/UI/Dialogs/PreviewDialog.gd
@@ -9,13 +9,14 @@ var current_import_option : int = ImageImportOptions.NEW_TAB
 var spritesheet_horizontal := 1
 var spritesheet_vertical := 1
 
+onready var texture_rect : TextureRect = $VBoxContainer/CenterContainer/TextureRect
 onready var spritesheet_options = $VBoxContainer/HBoxContainer/SpritesheetOptions
 
 
 func _on_PreviewDialog_about_to_show() -> void:
 	var img_texture := ImageTexture.new()
 	img_texture.create_from_image(image)
-	get_node("VBoxContainer/CenterContainer/TextureRect").texture = img_texture
+	texture_rect.texture = img_texture
 
 
 func _on_PreviewDialog_popup_hide() -> void:
@@ -33,13 +34,39 @@ func _on_ImportOption_item_selected(id : int) -> void:
 	current_import_option = id
 	if id == ImageImportOptions.SPRITESHEET:
 		spritesheet_options.visible = true
+		texture_rect.get_child(0).visible = true
+		texture_rect.get_child(1).visible = true
 	else:
 		spritesheet_options.visible = false
+		texture_rect.get_child(0).visible = false
+		texture_rect.get_child(1).visible = false
 
 
 func _on_HorizontalFrames_value_changed(value) -> void:
 	spritesheet_horizontal = value
+	for child in texture_rect.get_node("HorizLines").get_children():
+		child.queue_free()
+	if value > 1:
+		var line_distance = texture_rect.rect_size.x / value
+		for i in range(1, value):
+			var line_2d := Line2D.new()
+			line_2d.width = 1
+			line_2d.position = Vector2.ZERO
+			line_2d.add_point(Vector2(i * line_distance, 0))
+			line_2d.add_point(Vector2(i * line_distance, texture_rect.rect_size.x))
+			texture_rect.get_node("HorizLines").add_child(line_2d)
 
 
 func _on_VerticalFrames_value_changed(value) -> void:
 	spritesheet_vertical = value
+	for child in texture_rect.get_node("VerticalLines").get_children():
+		child.queue_free()
+	if value > 1:
+		var line_distance = texture_rect.rect_size.y / value
+		for i in range(1, value):
+			var line_2d := Line2D.new()
+			line_2d.width = 1
+			line_2d.position = Vector2.ZERO
+			line_2d.add_point(Vector2(0, i * line_distance))
+			line_2d.add_point(Vector2(texture_rect.rect_size.y, i * line_distance))
+			texture_rect.get_node("VerticalLines").add_child(line_2d)
diff --git a/src/UI/Dialogs/PreviewDialog.tscn b/src/UI/Dialogs/PreviewDialog.tscn
index a97f343..8ebde6a 100644
--- a/src/UI/Dialogs/PreviewDialog.tscn
+++ b/src/UI/Dialogs/PreviewDialog.tscn
@@ -42,6 +42,10 @@ __meta__ = {
 "_edit_use_anchors_": false
 }
 
+[node name="HorizLines" type="Control" parent="VBoxContainer/CenterContainer/TextureRect"]
+
+[node name="VerticalLines" type="Control" parent="VBoxContainer/CenterContainer/TextureRect"]
+
 [node name="HBoxContainer" type="HBoxContainer" parent="VBoxContainer"]
 margin_top = 304.0
 margin_right = 534.0
@@ -57,6 +61,7 @@ text = "Import as:"
 margin_left = 70.0
 margin_right = 151.0
 margin_bottom = 20.0
+mouse_default_cursor_shape = 2
 text = "New tab"
 items = [ "New tab", null, false, 0, null, "Spritesheet (new tab)", null, false, 1, null, "New frame", null, true, 2, null, "New layer", null, true, 3, null, "New palette", null, true, 4, null ]
 selected = 0