A few more adjustments to about page screenshots, with better sample content. See #26387
Built from https://develop.svn.wordpress.org/trunk@26789


git-svn-id: http://core.svn.wordpress.org/trunk@26676 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Correcting the device proportions on the Twenty Fourteen screenshot; see #26387.
Built from https://develop.svn.wordpress.org/trunk@26790


git-svn-id: http://core.svn.wordpress.org/trunk@26677 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Minor adjustments to the Twenty Fourteen screenshot on the About page. See #26387.
Built from https://develop.svn.wordpress.org/trunk@26791


git-svn-id: http://core.svn.wordpress.org/trunk@26678 1a063a9b-81f0-0310-95a4-ce76da25c4cd
Adjusting about-colors.png so it lines up on the grid with images above and below it. See #26387.


Built from https://develop.svn.wordpress.org/trunk@26792


git-svn-id: http://core.svn.wordpress.org/trunk@26679 1a063a9b-81f0-0310-95a4-ce76da25c4cd