Optimise images (299 KB reduction)

Hi, dennisreimann.

I've taken the liberty of putting ioctocat'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 210 optimisable images, making a 299 KB reduction in size. That's about 32.75% of your total image assets.

Merry Christmas.

<table><tr><th>Name</th><th>Reduction</th></tr><tr><td>Beta-Icon.png</td><td>49.96%</td></tr><tr><td>Icon.png</td><td>14.98%</td></tr><tr><td>Beta-Icon-iPad.png</td><td>7.85%</td></tr><tr><td>Beta-Icon-iPad@2x.png</td><td>13.41%</td></tr><tr><td>Beta-Icon.png</td><td>6.34%</td></tr><tr><td>Beta-Icon@2x.png</td><td>10.15%</td></tr><tr><td>Default-568h@2x.png</td><td>85.15%</td></tr><tr><td>Default-Landscape@2x~ipad.png</td><td>71.78%</td></tr><tr><td>Default-Landscape~ipad.png</td><td>56.22%</td></tr><tr><td>Default-Portrait@2x~ipad.png</td><td>73.76%</td></tr><tr><td>Default-Portrait~ipad.png</td><td>75.67%</td></tr><tr><td>Default.png</td><td>42.28%</td></tr><tr><td>Default@2x.png</td><td>56.67%</td></tr><tr><td>Icon-iPad.png</td><td>20.45%</td></tr><tr><td>Icon-iPad@2x.png</td><td>13.65%</td></tr><tr><td>Icon.png</td><td>24.93%</td></tr><tr><td>Icon@2x.png</td><td>14.84%</td></tr><tr><td>AvatarBackground32.png</td><td>38.64%</td></tr><tr><td>AvatarBackground32@2x.png</td><td>45.91%</td></tr><tr><td>AvatarBackground50.png</td><td>31.11%</td></tr><tr><td>AvatarBackground50@2x.png</td><td>52.41%</td></tr><tr><td>DefaultGravatar.png</td><td>35.75%</td></tr><tr><td>DefaultGravatar@2x.png</td><td>42.54%</td></tr><tr><td>check.png</td><td>21.59%</td></tr><tr><td>check@2x.png</td><td>32.73%</td></tr><tr><td>warning.png</td><td>31.23%</td></tr><tr><td>warning@2x.png</td><td>33.27%</td></tr><tr><td>HeadBackground80.png</td><td>2.29%</td></tr><tr><td>HeadBackground90.png</td><td>1.53%</td></tr><tr><td>CommitCommentEvent.png</td><td>17.99%</td></tr><tr><td>CommitCommentEvent@2x.png</td><td>17.05%</td></tr><tr><td>CreateEvent.png</td><td>16.76%</td></tr><tr><td>CreateEvent@2x.png</td><td>10.96%</td></tr><tr><td>DeleteEvent.png</td><td>23.60%</td></tr><tr><td>DeleteEvent@2x.png</td><td>6.79%</td></tr><tr><td>DownloadEvent.png</td><td>9.12%</td></tr><tr><td>DownloadEvent@2x.png</td><td>8.58%</td></tr><tr><td>FollowEvent.png</td><td>12.06%</td></tr><tr><td>FollowEvent@2x.png</td><td>4.73%</td></tr><tr><td>ForkApplyEvent.png</td><td>16.54%</td></tr><tr><td>ForkApplyEvent@2x.png</td><td>6.11%</td></tr><tr><td>ForkEvent.png</td><td>27.50%</td></tr><tr><td>ForkEvent@2x.png</td><td>13.29%</td></tr><tr><td>GistEvent.png</td><td>9.51%</td></tr><tr><td>GistEvent@2x.png</td><td>7.78%</td></tr><tr><td>GollumEvent.png</td><td>6.83%</td></tr><tr><td>GollumEvent@2x.png</td><td>6.14%</td></tr><tr><td>IssueCommentEvent.png</td><td>17.99%</td></tr><tr><td>IssueCommentEvent@2x.png</td><td>17.05%</td></tr><tr><td>IssuesClosedEvent.png</td><td>13.76%</td></tr><tr><td>IssuesClosedEvent@2x.png</td><td>9.23%</td></tr><tr><td>IssuesEvent.png</td><td>20.00%</td></tr><tr><td>IssuesEvent@2x.png</td><td>12.83%</td></tr><tr><td>IssuesOpenedEvent.png</td><td>17.62%</td></tr><tr><td>IssuesOpenedEvent@2x.png</td><td>10.42%</td></tr><tr><td>MemberEvent.png</td><td>6.21%</td></tr><tr><td>MemberEvent@2x.png</td><td>6.27%</td></tr><tr><td>PublicEvent.png</td><td>20.71%</td></tr><tr><td>PublicEvent@2x.png</td><td>18.29%</td></tr><tr><td>PullRequestClosedEvent.png</td><td>8.66%</td></tr><tr><td>PullRequestClosedEvent@2x.png</td><td>5.16%</td></tr><tr><td>PullRequestEvent.png</td><td>9.04%</td></tr><tr><td>PullRequestEvent@2x.png</td><td>5.71%</td></tr><tr><td>PullRequestOpenedEvent.png</td><td>10.62%</td></tr><tr><td>PullRequestOpenedEvent@2x.png</td><td>3.78%</td></tr><tr><td>PullRequestReviewCommentEvent.png</td><td>17.99%</td></tr><tr><td>PullRequestReviewCommentEvent@2x.png</td><td>17.05%</td></tr><tr><td>PullRequestSynchronizeEvent.png</td><td>8.81%</td></tr><tr><td>PullRequestSynchronizeEvent@2x.png</td><td>3.43%</td></tr><tr><td>PushEvent.png</td><td>20.20%</td></tr><tr><td>PushEvent@2x.png</td><td>9.43%</td></tr><tr><td>TeamAddEvent.png</td><td>6.16%</td></tr><tr><td>TeamAddEvent@2x.png</td><td>6.54%</td></tr><tr><td>WatchEvent.png</td><td>16.20%</td></tr><tr><td>WatchEvent@2x.png</td><td>14.66%</td></tr><tr><td>branch.png</td><td>18.17%</td></tr><tr><td>branch@2x.png</td><td>6.08%</td></tr><tr><td>code.png</td><td>29.13%</td></tr><tr><td>code@2x.png</td><td>27.34%</td></tr><tr><td>comment.png</td><td>17.99%</td></tr><tr><td>comment@2x.png</td><td>17.05%</td></tr><tr><td>commit.png</td><td>16.57%</td></tr><tr><td>commit@2x.png</td><td>11.38%</td></tr><tr><td>feed.png</td><td>14.24%</td></tr><tr><td>feed@2x.png</td><td>11.09%</td></tr><tr><td>file.png</td><td>21.39%</td></tr><tr><td>file@2x.png</td><td>13.85%</td></tr><tr><td>file_added.png</td><td>38.36%</td></tr><tr><td>file_added@2x.png</td><td>36.57%</td></tr><tr><td>file_modified.png</td><td>37.20%</td></tr><tr><td>file_modified@2x.png</td><td>45.81%</td></tr><tr><td>file_removed.png</td><td>29.63%</td></tr><tr><td>file_removed@2x.png</td><td>34.36%</td></tr><tr><td>file_renamed.png</td><td>36.81%</td></tr><tr><td>file_renamed@2x.png</td><td>42.44%</td></tr><tr><td>folder.png</td><td>2.68%</td></tr><tr><td>folder@2x.png</td><td>5.30%</td></tr><tr><td>fork.png</td><td>27.50%</td></tr><tr><td>fork@2x.png</td><td>13.29%</td></tr><tr><td>gist.png</td><td>9.51%</td></tr><tr><td>gist@2x.png</td><td>7.78%</td></tr><tr><td>issue.png</td><td>20.00%</td></tr><tr><td>issue@2x.png</td><td>12.83%</td></tr><tr><td>issue_closed.png</td><td>13.76%</td></tr><tr><td>issue_closed@2x.png</td><td>9.23%</td></tr><tr><td>issue_open.png</td><td>17.62%</td></tr><tr><td>issue_open@2x.png</td><td>10.42%</td></tr><tr><td>member.png</td><td>6.21%</td></tr><tr><td>member@2x.png</td><td>6.27%</td></tr><tr><td>private.png</td><td>13.79%</td></tr><tr><td>private@2x.png</td><td>3.99%</td></tr><tr><td>public.png</td><td>20.71%</td></tr><tr><td>public@2x.png</td><td>18.29%</td></tr><tr><td>pull_request.png</td><td>9.04%</td></tr><tr><td>pull_request@2x.png</td><td>5.71%</td></tr><tr><td>pull_request_closed.png</td><td>8.66%</td></tr><tr><td>pull_request_closed@2x.png</td><td>5.16%</td></tr><tr><td>pull_request_open.png</td><td>10.62%</td></tr><tr><td>pull_request_open@2x.png</td><td>3.78%</td></tr><tr><td>readme.png</td><td>25.00%</td></tr><tr><td>readme@2x.png</td><td>22.30%</td></tr><tr><td>user.png</td><td>8.94%</td></tr><tr><td>user@2x.png</td><td>6.26%</td></tr><tr><td>MenuApp.png</td><td>25.23%</td></tr><tr><td>MenuApp@2x.png</td><td>36.17%</td></tr><tr><td>MenuAppOn.png</td><td>29.66%</td></tr><tr><td>MenuAppOn@2x.png</td><td>28.14%</td></tr><tr><td>MenuGists.png</td><td>50.25%</td></tr><tr><td>MenuGists@2x.png</td><td>48.31%</td></tr><tr><td>MenuGistsOn.png</td><td>14.06%</td></tr><tr><td>MenuGistsOn@2x.png</td><td>38.52%</td></tr><tr><td>MenuIssues.png</td><td>42.64%</td></tr><tr><td>MenuIssues@2x.png</td><td>49.02%</td></tr><tr><td>MenuIssuesOn.png</td><td>26.35%</td></tr><tr><td>MenuIssuesOn@2x.png</td><td>38.62%</td></tr><tr><td>MenuOrgRepos.png</td><td>41.57%</td></tr><tr><td>MenuOrgRepos@2x.png</td><td>49.30%</td></tr><tr><td>MenuOrgReposOn.png</td><td>29.77%</td></tr><tr><td>MenuOrgReposOn@2x.png</td><td>32.85%</td></tr><tr><td>MenuOrgs.png</td><td>40.42%</td></tr><tr><td>MenuOrgs@2x.png</td><td>50.08%</td></tr><tr><td>MenuOrgsOn.png</td><td>25.30%</td></tr><tr><td>MenuOrgsOn@2x.png</td><td>33.37%</td></tr><tr><td>MenuProfile.png</td><td>39.27%</td></tr><tr><td>MenuProfile@2x.png</td><td>49.45%</td></tr><tr><td>MenuProfileOn.png</td><td>23.41%</td></tr><tr><td>MenuProfileOn@2x.png</td><td>37.28%</td></tr><tr><td>MenuPullRequests.png</td><td>49.39%</td></tr><tr><td>MenuPullRequests@2x.png</td><td>52.72%</td></tr><tr><td>MenuPullRequestsOn.png</td><td>24.28%</td></tr><tr><td>MenuPullRequestsOn@2x.png</td><td>25.06%</td></tr><tr><td>MenuRepositories.png</td><td>60.39%</td></tr><tr><td>MenuRepositories@2x.png</td><td>62.96%</td></tr><tr><td>MenuRepositoriesOn.png</td><td>35.91%</td></tr><tr><td>MenuRepositoriesOn@2x.png</td><td>43.63%</td></tr><tr><td>MenuSearch.png</td><td>44.23%</td></tr><tr><td>MenuSearch@2x.png</td><td>51.35%</td></tr><tr><td>MenuSearchOn.png</td><td>25.89%</td></tr><tr><td>MenuSearchOn@2x.png</td><td>28.89%</td></tr><tr><td>MenuStarredGists.png</td><td>49.21%</td></tr><tr><td>MenuStarredGists@2x.png</td><td>49.37%</td></tr><tr><td>MenuStarredGistsOn.png</td><td>26.77%</td></tr><tr><td>MenuStarredGistsOn@2x.png</td><td>39.88%</td></tr><tr><td>Octocat.png</td><td>41.32%</td></tr><tr><td>Octocat@2x.png</td><td>49.18%</td></tr><tr><td>ToolbarCommit.png</td><td>86.02%</td></tr><tr><td>ToolbarCommit@2x.png</td><td>83.85%</td></tr><tr><td>ToolbarCommitOn.png</td><td>29.79%</td></tr><tr><td>ToolbarCommitOn@2x.png</td><td>37.54%</td></tr><tr><td>ToolbarDown.png</td><td>36.67%</td></tr><tr><td>ToolbarDown@2x.png</td><td>35.18%</td></tr><tr><td>ToolbarGist.png</td><td>40.70%</td></tr><tr><td>ToolbarGist@2x.png</td><td>43.64%</td></tr><tr><td>ToolbarGistOn.png</td><td>29.27%</td></tr><tr><td>ToolbarGistOn@2x.png</td><td>34.30%</td></tr><tr><td>ToolbarIssue.png</td><td>80.57%</td></tr><tr><td>ToolbarIssue@2x.png</td><td>73.40%</td></tr><tr><td>ToolbarIssueOn.png</td><td>25.00%</td></tr><tr><td>ToolbarIssueOn@2x.png</td><td>34.92%</td></tr><tr><td>ToolbarPullRequest.png</td><td>44.49%</td></tr><tr><td>ToolbarPullRequest@2x.png</td><td>49.62%</td></tr><tr><td>ToolbarPullRequestOn.png</td><td>20.44%</td></tr><tr><td>ToolbarPullRequestOn@2x.png</td><td>24.40%</td></tr><tr><td>ToolbarRepository.png</td><td>40.11%</td></tr><tr><td>ToolbarRepository@2x.png</td><td>47.10%</td></tr><tr><td>ToolbarRepositoryOn.png</td><td>28.06%</td></tr><tr><td>ToolbarRepositoryOn@2x.png</td><td>34.67%</td></tr><tr><td>ToolbarStar.png</td><td>33.00%</td></tr><tr><td>ToolbarStar@2x.png</td><td>29.10%</td></tr><tr><td>ToolbarStarOn.png</td><td>10.70%</td></tr><tr><td>ToolbarStarOn@2x.png</td><td>27.65%</td></tr><tr><td>ToolbarUp.png</td><td>32.29%</td></tr><tr><td>ToolbarUp@2x.png</td><td>35.05%</td></tr><tr><td>ToolbarUser.png</td><td>33.69%</td></tr><tr><td>ToolbarUser@2x.png</td><td>33.62%</td></tr><tr><td>ToolbarUserOn.png</td><td>19.09%</td></tr><tr><td>ToolbarUserOn@2x.png</td><td>30.30%</td></tr><tr><td>ToolbarUsers.png</td><td>89.55%</td></tr><tr><td>ToolbarUsers@2x.png</td><td>42.81%</td></tr><tr><td>ToolbarUsersOn.png</td><td>22.01%</td></tr><tr><td>ToolbarUsersOn@2x.png</td><td>28.69%</td></tr><tr><td>ToolbarWeb.png</td><td>77.72%</td></tr><tr><td>ToolbarWeb@2x.png</td><td>77.63%</td></tr><tr><td>ToolbarWebOn.png</td><td>21.73%</td></tr><tr><td>ToolbarWebOn@2x.png</td><td>26.79%</td></tr><tr><td>ToolbarWiki.png</td><td>76.13%</td></tr><tr><td>ToolbarWiki@2x.png</td><td>73.45%</td></tr><tr><td>ToolbarWikiOn.png</td><td>31.35%</td></tr><tr><td>ToolbarWikiOn@2x.png</td><td>36.35%</td></tr><tr><td>iTunesArtwork</td><td>1.45%</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)