config.json

{
  "vars": {
    "@gray-base": "#000",
    "@gray-darker": "lighten(@gray-base, 13.5%)",
    "@gray-dark": "lighten(@gray-base, 20%)",
    "@gray": "lighten(@gray-base, 33.5%)",
    "@gray-light": "lighten(@gray-base, 46.7%)",
    "@gray-lighter": "lighten(@gray-base, 93.5%)",
    "@brand-primary": "darken(#00994b, 6.5%)",
    "@brand-success": "#5cb85c",

ZacSweers

public class MenuPreference extends ListPreference {
  private View anchor;

  public MenuPreference(Context context) {
    super(context);
  }

  public MenuPreference(Context context, AttributeSet attrs) {
    super(context, attrs);
  }

staltz

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

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This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

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