design_element_state.md

@@ -9,6 +9,13 @@ Different states:
 - active: some buttons acts as as a toggle, which can be activated or de-activated
 - disabled: the button can't be accessed
 
+
+Currently hover and focused uses the same style everywhere, but some design systems uses a different representation 
+
+* https://docs.microsoft.com/en-us/windows/uwp/design/input/guidelines-for-visualfeedback#additional-usage-guidance
+* https://docs.microsoft.com/en-us/windows/uwp/design/style/reveal-focus
+* https://design.firefox.com/photon/components/tabs.html
+
 # Grid item
 
 | state  | light | dark |