Description
The Themer Pro is a sandbox environment for child theme development that organizes the editing of CSS, PHP files, and styles in an isolated area within the WordPress dashboard, without affecting the active theme. Designed for those who build custom WordPress sites, it allows testing CSS, layout, and typography customizations before applying them definitively to the client’s theme, speeding up the delivery of ready child themes.
Main Features of Themer Pro
- CSS editor in the dashboard
Edit the stylesheet directly in the admin area with syntax highlighting and immediate application. - Development sandbox
Isolated area to experiment with changes without compromising the theme in use on the site. - Child theme generator
Creates the initial structure of the child theme with basic files already configured. - Theme file editor
Access PHP templates, functions.php, and other files in the child theme folder. - Preview of changes
Shows the result of customizations in real time before the final deploy.
Benefits of Themer Pro
- Faster delivery
Reduces the time spent preparing manual development environments for each project. - Safe editing
Sandbox testing prevents breaking the live site during customizations. - Code reuse
Completed child themes can be used as a base in multiple different projects. - Less technical friction
No need for complex local environment setup to make simple theme adjustments.
Who Is Themer Pro For?
- Those who develop child themes on demand for clients in WordPress.
- You who need to visually customize themes without touching parent theme files.
- Those managing multiple WordPress sites and wanting to standardize the child theme creation process.
How to Download Themer Pro
The Themer Pro is available for download here at Ultrapack. After downloading the .zip file, install it at Plugins > Add New > Upload plugin, select the file, and activate. The child theme editing menu appears in the WordPress admin dashboard right after activation.
Targeted at the workflow of those who professionally develop WordPress sites, Themer Pro shortens the distance between prototyping and delivery by concentrating CSS editing, theme files, and child theme packaging in a single interface. The sandbox protects the production environment while customizations are tested, making the customization process more predictable and less prone to failures during deployment.
Frequently asked questions
Is CobaltApps Themer Pro GPL-licensed?
Yes. CobaltApps Themer Pro is distributed under the GPL (GNU General Public License). You may legally use, modify and redistribute it on as many sites as you want.
Can I use CobaltApps Themer Pro on multiple sites?
Yes. You can install CobaltApps Themer Pro on as many sites as you want. Only automatic updates through Ultrapack Auto Updater have a limit: from 3 to 80 sites, depending on the plan.
How much does CobaltApps Themer Pro cost at Ultrapack?
CobaltApps Themer Pro costs US$2.99 as a single purchase, and it is also included in the subscription plans starting at US$12/mo (VIP I).
Does CobaltApps Themer Pro include updates?
Yes. The current version of CobaltApps Themer Pro is 1.5.5, published at Ultrapack on Dec 3, 2020. Subscribers update straight from the WordPress dashboard with UAU (Ultrapack Auto Updater).
Is CobaltApps Themer Pro scanned before publication?
Yes. Every version of CobaltApps Themer Pro goes through a malware scan (ClamAV and YARA rules, at UltraHub) before it is published.
What changed in this version
Version 1.5.5 2020-12-02
- Added Beaver Builder specific styles to FE DEV Tools stylesheet to resolve a styling issue that occurs when docking the BB Modules box when FE DEV Tools is enabled.
Version 1.5.4 2020-11-14
- Updated Genesis Sample Theme to version 3.4.0.
Version 1.5.3 2020-10-11
- Added new GeneratePress Hooks to Hooksmap feature.
- Updated GeneratePress Child Theme files.
- Changed Image Manager items background color to light gray so that transparent images are visible.
Version 1.5.2 2020-09-02
- Made it so that exported Genesis Child Theme language file names are being properly reflected by the custom name given to cloned Child Themes.
Version 1.5.1 2020-08-27
- Added Page Builder Framework to supported theme frameworks.
- Added Kadence Theme and Page Builder Framework hooks to hooks map array.
Release notes published by the developer.
How to install
Automatic updates: this item is updated by the Ultrapack Auto Updater. With it installed, the new version shows up in your dashboard like any other WordPress update (how to set it up).
- Download the file
themer-pro.zip. - In the WordPress dashboard, go to Plugins > Add New > Upload Plugin.
- Select the file
themer-pro.zipand click Install Now. - Click Activate.
Stuck on a step? Open a ticket telling us which one you stopped at.

UAU Ready