Cliff Seal

Simply put: this plugin gives the Editor role access to edit “theme options”, which includes:
<ul>
<li>Appearance > Widgets</li>
<li>Appearance > Menus</li>
<li>Appearance > Customize if they are supported by the current theme</li>
<li>Appearance > Background</li>
<li>Appearance > Header</li>
</ul>
Instead of adding this capability by hand on each client site, just install and activate this plugin—it keeps your <code>functions.php</code> file clean, and keeps this type of functionality where it belongs.
The capability is added to the role once (on plugin activation) and removed when the plugin is deactivated.

Editor Theme Options

Allow editors to access theme options in the Appearance menu.

dimitris33

This plugin adds suport for the TwentyFifteen theme to the <a href="https://wordpress.org/extend/plugins/styles" rel="ugc">Styles plugin</a>.
About Styles TwentyFifteen
Using this plugin with the Styles plugin you can instantly change the style of the TwentyFifteen theme from the customizer.
Features of the plugin
<ul>
<li>Instant previews</li>
<li>Text size</li>
<li>Google Fonts</li>
<li>Text colors</li>
<li>Border colors</li>
<li>Background colors</li>
<li>Hundreds of options</li>
<li>Consistent interface and names in every theme</li>
<li>Built on WordPress customizer, so Styles grows as WordPress grows</li>
</ul>
Styles and options for all built-in WordPress themes are free. More themes are available at <a href="http://stylesplugin.com" rel="nofollow ugc">StylesPlugin.com</a>.
Free Themes
<ul>
<li>TwentyTen: <a href="http://demo.stylesplugin.com/twentyten" rel="nofollow ugc">Demo</a></li>
<li>TwentyEleven: <a href="http://demo.stylesplugin.com/twentyeleven" rel="nofollow ugc">Demo</a></li>
<li>TwentyTwelve: <a href="http://demo.stylesplugin.com/twentytwelve" rel="nofollow ugc">Demo</a></li>
<li>TwentyThirteen: <a href="http://demo.stylesplugin.com/twentythirteen" rel="nofollow ugc">Demo</a></li>
</ul>
Developer Resources
<ul>
<li><a href="https://github.com/stylesplugin" rel="nofollow ugc">Styles on Github</a></li>
<li><a href="https://github.com/brainstormmedia" rel="nofollow ugc">Brainstorm Media on Github</a></li>
<li>Code Walkthrough: <a href="http://www.youtube.com/playlist?list=PLxj61Fojm1RGevBh10U2qCqjwoH4Awo-P" rel="nofollow ugc">How to add support for your own themes</a></li>
</ul>

Styles: TwentyFifteen

This plugin adds suport for the TwentyFifteen1 theme to the Styles plugin.

Editor Theme Options vs Styles: TwentyFifteen