update todo

TODO

@@ -7,9 +7,14 @@
 [ ] Write a README.md
 [ ] Use an arena allocator for cache
 [ ] Do not redraw if there was no update (no layout and no draw)
-[ ] Better handling of the active and focused widgets, try
+[x] Better handling of the active and focused widgets, try
 to maintain focus until mouse release (fix scroll bars)
 [x] Clip element bounds to parent div, specifically text
+[ ] Keyboard input
+[ ] Mouse scroll wheel
+[ ] Touch input
+[ ] Resizeable divs
+[ ] Implement a z index
 
 ## Commands
 
@@ -17,6 +22,7 @@ to maintain focus until mouse release (fix scroll bars)
 _ border width
 _ border radius
 [x] add a command to update an atlas
+[ ] New window command, useful for popups
 
 ## Atlases
 
@@ -36,4 +42,6 @@ _ border radius
 ## Widgets
 
 [x] Dynamic text box to implement an fps counter
-[ ] Button with label
+[x] Button with label
+[ ] Text Input box
+[ ] Icon Buttons