Supercharge your WordPress site with Caledros Basic Blocks – a collection of 18 lightweight, performance-optimized Gutenberg blocks designed to extend the capabilities of the WordPress block editor without slowing down your site.

Unlike many block libraries that add unnecessary bloat, Caledros Basic Blocks focuses on efficiency and speed. Each block is crafted to deliver essential functionality while keeping your site lean.

The plugin includes a built-in CSS stylesheet preloader, ensuring faster page load times by optimizing the delivery of block styles. This feature can be easily disabled if preferred, giving you full control over performance tuning.

Features

Adds 18 new custom Gutenberg blocks, and 2 new variation blocks. 4 blocks and 1 variation block are only available for header template parts. 1 block (Content Renderer) is limited to templates.
Flex and grid containers blocks included
Dark/Light mode block included
Blocks built with performance and minimalism in mind
Includes a toggleable preloader for CSS stylesheets to improve loading speed
Includes toggleable controls for adding/removing pre-defined CSS styles to the “wp-site-blocks” container.
Enable featured images for post categories
Clean, modern design for seamless visual integration
Fully responsive and compatible with Full Site Editing Themes

Perfect for developers, designers, and content creators who want more control and better performance without the overhead of large block libraries.

More Projects & Information

For more information about my projects, you can visit my website: caledrosforge.com

Third Party Resources

Caledros Basic Blocks bundles the following third-party resources:

1. Icons

The icons (SVG files) used in the Icon block, Social Icon block, and the Button Block were downloaded from Bootstrap Icons.

Additionally, the four icons used in the Posts Loop block (user, date, category, and tag) as well as the publications icon in the Category Loop block, were all sourced from Bootstrap Icons.

Bootstrap Icons are licensed under the MIT License.

Source: Bootstrap Icons Github repository and Bootstrap Icons website

License information last verified on: May 21st, 2025

2. Libraries

Both the Slider block and the Image Gallery block use the Swiper JS library, which is licensed under the MIT License.

Source: Swiper JS Github repository and Swiper JS website

License information last verified on: May 14th, 2025

3. Images

3.1. Placeholder Mountains (placeholder-mountains.webp, placeholder-mountains.7da2eb2d.webp)

Used in the Category Loop and Posts Loop blocks.

CC0 licensed photo by Marcus Kazmierczak from the WordPress Photo Directory

Source: WordPress Photo Directory

License information last verified on: September 7th, 2025

3.2. Bird (bird.webp, bird.8dbbb5a8.webp)

Used in the Image Gallery block.

CC0 licensed photo by Nilesh Shiragave from the WordPress Photo Directory

Source: WordPress Photo Directory

License information last verified on: September 7th, 2025

3.3. Flower (flower.webp, flower.1092b3c8.webp)

Used in the Image Gallery block.

CC0 licensed photo by Chura Bhandari from the WordPress Photo Directory

Source: WordPress Photo Directory

License information last verified on: September 7th, 2025

3.4. Mountains (mountains.webp, mountains.2b50cd4a.webp)

Used in the Image Gallery block.

CC0 licensed photo by ABISHKAAR CHETTRI from the WordPress Photo Directory

Source: WordPress Photo Directory

License information last verified on: September 7th, 2025