When having a long rest, you regain all your hit points and half your spent Hit Dice (for use in future short rests). I know that normally when faced with fractions you round down. But then, I see no way to regain your 1 Hit Die at 1st level.

So basic question: if you are at first level, and you take a long rest, do you regain your Hit Die, or do you not because you had to halve 1 and round down?


Question: Changing LED color for notifications
Answer: Try using the hex color, include an alpha value and set the defaults to 0: 

notification.defaults = 0;
notification.ledARGB = 0xff0000ff;


Also, the notification interface says this:

public int ledARGB
Since: API Level 1

The color of the led. The hardware will do its best approximation.


I'm assuming your hardware has all the colors, but it may not.