Letterbox Thumbnails

WordPress Letterbox Thumbnails plugin

[Instalation]

1. Copy folder 'letterbox-thumbnails' to WordPress plugins folder (default: 'wp-content\plugins')

2. Go to plugin admin page and activate new Letterbox Thumbnails plugin.

[About]

Plugin new editor to WordPress that generate Thumbnails with letterboxing style (Letterbox color sets in settings). More on WP Site