Added gradient example

Author: jeffThompson

Design/Gradient/Gradient.pde

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+
+/*
+GRADIENT
+Jeff Thompson | 2015 | www.jeffreythompson.org
+
+Draws a gradient between two colors using a series 
+of 1px-thick lines. The color is changed gradually 
+using lerpColor(), which takes two colors and a 
+value between 0-1 to set an intermediate color.
+
+*/
+
+color start = color(25,180,255);
+color end =   color(215,150,0);
+
+
+void setup() {
+  size(800,800);
+  
+  // no background() command - gradient instead!
+  for (int y=0; y<height; y++) {
+    
+    // we need a value between 0-1 for lerpColor()
+    // here we use map() to convert y into the right range
+    float interval = map(y, 0,height, 0,1);
+    
+    // set the color and draw a horizontal line
+    color c = lerpColor(start, end, interval);
+    stroke(c);
+    line(0,y, width,y);
+  }
+}
+
+

Design/Gradient/sketch.properties

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+mode.id=processing.mode.java.JavaMode
+mode=Java (2.0)