how to use tile pallete code example

Example 1: tile palette background color

EditorGUILayout.BeginHorizontal();
float leftMargin = (Screen.width / EditorGUIUtility.pixelsPerPoint - TilemapEditorTool.tilemapEditorToolsToolbarSize) * 0.5f;
GUILayout.Space(leftMargin);
EditorGUILayout.EditorToolbar(TilemapEditorTool.tilemapEditorTools);
previewUtility.camera.backgroundColor = EditorGUILayout.ColorField(previewUtility.camera.backgroundColor);  // <--- CHANGE!
GUILayout.Space(leftMargin);
EditorGUILayout.EndHorizontal();

Example 2: tile palette background color

EditorGUILayout.BeginHorizontal();
float leftMargin = (Screen.width / EditorGUIUtility.pixelsPerPoint - TilemapEditorTool.tilemapEditorToolsToolbarSize) * 0.5f;
GUILayout.Space(leftMargin);
EditorGUILayout.EditorToolbar(TilemapEditorTool.tilemapEditorTools);
GUILayout.Space(leftMargin);
EditorGUILayout.EndHorizontal();