Minor updates

Author: PitPik

README.md

@@ -66,7 +66,7 @@ $('.color').colorPicker({
 
 The positionCallback can be used to optionally position the colorPicker different from its default; in case you want it to also show above or to the left of the input field etc.
 The callback will also be called on scroll.
-You need to return an object that holds ```left``` and ```top``` to position the colorPicker. See ./demo/index.js for an example:
+If you return an object (```{left: x, top: y}``` to position the colorPicker) then those coordinates will be taken, otherwhise the function just executes (what you need to do: re-append for example) and it takes the internal algorithm to position the color picker. See ./demo/index.js for an example:
 
 ```javascript
 positionCallback: function($elm) {

colors.js

@@ -31,7 +31,7 @@
 		Colors = function(options) {
 			this.colors = {RND: {}};
 			this.options = {
-				color: 'rgba(204, 82, 37, 0.8)', // init value(s)...
+				color: 'rgba(0,0,0,0)', // init value(s)...
 				grey: grey,
 				luminance: luminance,
 				valueRanges: _valueRanges

index.html

@@ -25,7 +25,7 @@
 <div id="content-wrapper">
 <h1>Tiny jQuery colorPicker</h1>
 <p>Looking for mobile first, tiny foot print, fast, scaleable, flexible and pluggable...<br>
-This <strong>4.7KB</strong> (gZip) small HSB color picker is based on a subset of <a href="https://github.com/PitPik/colorPicker/blob/master/colors.js">colors.js</a> from it's big brother <a href="http://dematte.at/colorPicker/">colorPicker</a>, supports all modern features like touch and MS pointer, GPU accelerated rendering, battery friendly requestAnimationFrame and provides a lot of hooks for developers to write plugins (See demo plugins below in <a href="#demo">Demo</a>).</p>
+This <strong>5.07KB</strong> (gZip; 11.39KB minified) small HSB color picker is based on a subset of <a href="https://github.com/PitPik/colorPicker/blob/master/colors.js">colors.js</a> from it's big brother <a href="http://dematte.at/colorPicker/">colorPicker</a>, supports all modern features like touch and MS pointer, GPU accelerated rendering, battery friendly requestAnimationFrame and provides a lot of hooks for developers to write plugins (See demo plugins below in <a href="#demo">Demo</a>).</p>
 <a name="demo" id="demo" class="a-inline"></a>
 <h2>Demo</h2>
 On all elements with className 'color': <pre>$('.color').colorPicker();</pre>