Rakib

To avoid plugin territory warning for CPT and Meta Boxes, This is a great choice for you. Violet Custom Post Meta adds necessary CPT, Meta, Texonomy to develop awesome portfolio theme.
Post Types:
<ul>
<li>services</li>
<li>skill</li>
<li>portfolio</li>
<li>testimonial</li>
<li>team</li>
<li>partner</li>
</ul>
Note that this plugin function can be modify as your choice by filter Hooks.
Hook Lists :
<pre><code>vcpm_{post_type}_params //to modify post type args.
vcpm_portfolio_category_params //to modify portfolio texonomy.
vcpm_meta_fields_{post_type} //provides ability to add, remove, modify meta fields.
vcpm_meta_box //Provides ability to create, delete and modify meta box.
vcpm_meta_fields_control //Fields styte, presentation can be modify.
</code></pre>

Violet Custom Post Meta

Plugin for Theme developers, Who wants to build portfolio themes rapidly.

Paul

Gemini Labs

Pollux allows you to easily add custom Post Types, Taxonomies, Meta Boxes, Global Settings, Archive Page meta, and more…all within mere minutes.
Instead of drag-and-drop, all configuration is added using simple <a href="https://learn-the-web.algonquindesign.ca/topics/markdown-yaml-cheat-sheet/#yaml" rel="nofollow ugc">YAML</a> markup on the Pollux settings page.
Pollux uses the <a href="https://wordpress.org/plugins/meta-box/" rel="ugc">Meta Box</a> plugin to add custom meta-boxes. If the Meta Box plugin is not installed, Pollux will prompt you to do so on the Pollux settings page.
Please see the <a href="https://github.com/pryley/pollux/wiki" rel="nofollow ugc">plugin wiki</a> for complete examples on how to use YAML markup in the plugin. Once you’ve used it, you’ll wonder how you ever managed without it!
Pollux was made to complement themes built on the <a href="https://github.com/pryley/castor-framework" rel="nofollow ugc">Castor framework</a> (i.e. <a href="https://github.com/pryley/castor" rel="nofollow ugc">Castor</a>), but it can be used with any theme.

Pollux

Pollux allows you to easily add custom Post Types, Taxonomies, Meta Boxes, Global Settings, Archive Page meta, and more...all within mere minutes.

Violet Custom Post Meta vs Pollux