Optimise images (135 KB reduction)

Hi, ruby.

I've taken the liberty of putting ruby-lang.org's image assets though a range of optimisation tools. Image optimisation allows us to reduce the footprint of images - meaning faster load times at no cost to image quality. It does this by finding the best (lossless) compression parameters, stripping embedded comments, and removing unnecessary colour profiles. [See more](http://port3000.co.uk/imageoptimiser-a-github-bot-to-proactively-op).

I found 110 optimisable images, making a 135 KB reduction in size. That's about 23.64% of your total image assets.

Merry Christmas.

<table><tr><th>Name</th><th>Reduction</th></tr><tr><td>background.png</td><td>33.33%</td></tr><tr><td>blankButton.png</td><td>6.10%</td></tr><tr><td>fullscreenButton.png</td><td>16.75%</td></tr><tr><td>fullscreenButtonOver.png</td><td>19.97%</td></tr><tr><td>muteButton.png</td><td>20.70%</td></tr><tr><td>muteButtonOver.png</td><td>25.75%</td></tr><tr><td>normalscreenButton.png</td><td>16.19%</td></tr><tr><td>normalscreenButtonOver.png</td><td>20.03%</td></tr><tr><td>pauseButton.png</td><td>28.82%</td></tr><tr><td>pauseButtonOver.png</td><td>17.19%</td></tr><tr><td>playButton.png</td><td>22.31%</td></tr><tr><td>playButtonOver.png</td><td>19.17%</td></tr><tr><td>timeSliderBuffer.png</td><td>2.68%</td></tr><tr><td>timeSliderCapLeft.png</td><td>6.38%</td></tr><tr><td>timeSliderCapRight.png</td><td>8.74%</td></tr><tr><td>timeSliderProgress.png</td><td>16.67%</td></tr><tr><td>timeSliderRail.png</td><td>2.59%</td></tr><tr><td>unmuteButton.png</td><td>17.42%</td></tr><tr><td>unmuteButtonOver.png</td><td>21.57%</td></tr><tr><td>background.png</td><td>25.36%</td></tr><tr><td>bufferIcon.png</td><td>9.44%</td></tr><tr><td>muteIcon.png</td><td>19.76%</td></tr><tr><td>playIcon.png</td><td>25.81%</td></tr><tr><td>button.png</td><td>25.36%</td></tr><tr><td>item.png</td><td>12.21%</td></tr><tr><td>itemOver.png</td><td>30.99%</td></tr><tr><td>sliderCapBottom.png</td><td>8.33%</td></tr><tr><td>sliderCapTop.png</td><td>9.52%</td></tr><tr><td>sliderRail.png</td><td>12.00%</td></tr><tr><td>sliderThumb.png</td><td>10.31%</td></tr><tr><td>embedIcon.png</td><td>23.23%</td></tr><tr><td>embedScreen.png</td><td>2.83%</td></tr><tr><td>shareIcon.png</td><td>23.77%</td></tr><tr><td>shareScreen.png</td><td>0.39%</td></tr><tr><td>bird_32_gray.png</td><td>76.16%</td></tr><tr><td>bird_32_gray_fail.png</td><td>49.11%</td></tr><tr><td>button_bg.png</td><td>16.76%</td></tr><tr><td>code_bg.png</td><td>23.43%</td></tr><tr><td>dotted-border.png</td><td>26.26%</td></tr><tr><td>email.png</td><td>20.27%</td></tr><tr><td>honey.png</td><td>50.00%</td></tr><tr><td>line-tile.png</td><td>8.49%</td></tr><tr><td>logo-background.jpg</td><td>10.64%</td></tr><tr><td>logo.gif</td><td>0.09%</td></tr><tr><td>noise.png</td><td>2.80%</td></tr><tr><td>rss.png</td><td>42.45%</td></tr><tr><td>ruby.png</td><td>4.29%</td></tr><tr><td>ruby100.png</td><td>8.20%</td></tr><tr><td>ruby75.png</td><td>7.38%</td></tr><tr><td>rubyTransparent.png</td><td>10.43%</td></tr><tr><td>rubylogo.png</td><td>31.89%</td></tr><tr><td>rubysource.png</td><td>12.94%</td></tr><tr><td>rubytest.png</td><td>30.66%</td></tr><tr><td>search.png</td><td>39.04%</td></tr><tr><td>shadow.jpg</td><td>6.01%</td></tr><tr><td>background.png</td><td>33.33%</td></tr><tr><td>blankButton.png</td><td>6.10%</td></tr><tr><td>fullscreenButton.png</td><td>16.75%</td></tr><tr><td>fullscreenButtonOver.png</td><td>19.97%</td></tr><tr><td>muteButton.png</td><td>20.70%</td></tr><tr><td>muteButtonOver.png</td><td>25.75%</td></tr><tr><td>normalscreenButton.png</td><td>16.19%</td></tr><tr><td>normalscreenButtonOver.png</td><td>20.03%</td></tr><tr><td>pauseButton.png</td><td>28.82%</td></tr><tr><td>pauseButtonOver.png</td><td>17.19%</td></tr><tr><td>playButton.png</td><td>22.31%</td></tr><tr><td>playButtonOver.png</td><td>19.17%</td></tr><tr><td>timeSliderBuffer.png</td><td>2.68%</td></tr><tr><td>timeSliderCapLeft.png</td><td>6.38%</td></tr><tr><td>timeSliderCapRight.png</td><td>8.74%</td></tr><tr><td>timeSliderProgress.png</td><td>16.67%</td></tr><tr><td>timeSliderRail.png</td><td>2.59%</td></tr><tr><td>unmuteButton.png</td><td>17.42%</td></tr><tr><td>unmuteButtonOver.png</td><td>21.57%</td></tr><tr><td>background.png</td><td>25.36%</td></tr><tr><td>bufferIcon.png</td><td>9.44%</td></tr><tr><td>muteIcon.png</td><td>19.76%</td></tr><tr><td>playIcon.png</td><td>25.81%</td></tr><tr><td>button.png</td><td>25.36%</td></tr><tr><td>item.png</td><td>12.21%</td></tr><tr><td>itemOver.png</td><td>30.99%</td></tr><tr><td>sliderCapBottom.png</td><td>8.33%</td></tr><tr><td>sliderCapTop.png</td><td>9.52%</td></tr><tr><td>sliderRail.png</td><td>12.00%</td></tr><tr><td>sliderThumb.png</td><td>10.31%</td></tr><tr><td>embedIcon.png</td><td>23.23%</td></tr><tr><td>embedScreen.png</td><td>2.83%</td></tr><tr><td>shareIcon.png</td><td>23.77%</td></tr><tr><td>shareScreen.png</td><td>0.39%</td></tr><tr><td>bird_32_gray.png</td><td>76.16%</td></tr><tr><td>bird_32_gray_fail.png</td><td>49.11%</td></tr><tr><td>button_bg.png</td><td>16.76%</td></tr><tr><td>code_bg.png</td><td>23.43%</td></tr><tr><td>dotted-border.png</td><td>26.26%</td></tr><tr><td>email.png</td><td>20.27%</td></tr><tr><td>honey.png</td><td>50.00%</td></tr><tr><td>line-tile.png</td><td>8.49%</td></tr><tr><td>logo-background.jpg</td><td>10.64%</td></tr><tr><td>logo.gif</td><td>0.09%</td></tr><tr><td>noise.png</td><td>2.80%</td></tr><tr><td>rss.png</td><td>42.45%</td></tr><tr><td>ruby.png</td><td>4.29%</td></tr><tr><td>ruby100.png</td><td>8.20%</td></tr><tr><td>ruby75.png</td><td>7.38%</td></tr><tr><td>rubyTransparent.png</td><td>10.43%</td></tr><tr><td>rubylogo.png</td><td>31.89%</td></tr><tr><td>rubysource.png</td><td>12.94%</td></tr><tr><td>rubytest.png</td><td>30.66%</td></tr><tr><td>search.png</td><td>39.04%</td></tr><tr><td>shadow.jpg</td><td>6.01%</td></tr></tr></table>

Tools used: advpng, gifsicle, jpegoptim, jpegrescan, jpegtran, optipng, pngcrush, pngout. This is an automated bot maintained by [@skattyadz](https://twitter.com/skattyadz)