About this plugin
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
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Third Party Resources
Caledros Basic Blocks bundles the following third-party resources:
1. Icons
1. Bootstrap Icons, Copyright (c) 2019-2024 The Bootstrap Authors
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
1. Swiper JS, Copyright (c) 2019 Vladimir Kharlampidi
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
1. 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
2. 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. 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
4. 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