$schemamarkup = get_post_meta(get_the_ID(), 'schemamarkup', true); if(!empty($schemamarkup)) { echo $schemamarkup; }

How to Install Gimp on RHEL-based Distros

RHEL-based Installing Latest Gimp Guide

You are Welcomw! Install Latest ‘The GIMP’ 2.10 on RHEL-based GNU/Linux desktops – Step by step Tutorials.

And The GIMP for CentOS (GNU Image Manipulation Program) is a Raster Graphics Editor used for Image Retouching and Editing, Free-Form Drawing, Resizing, Cropping, Photo-Montages, Converting between different Image Formats, and More specialized Tasks.

Finally, the Guide include detailed instruction on How to Getting Started with The Gimp.

How to Install Gimp on CentOS GNU/Linux Distro

GNU/Linux RHEL-based The GIMP App Installation Guide