cssSweet helps manage CSS and SCSS in a performant way. This tutorial describes how to combine cssSweet with dynamic, page-specific styles that can be controlled by the MODX CMS user.
How to make a dynamic list option field for child Resources in the MODX Manager.
A quick MODX CMS tip: how to easily make a multi-select Resource list Template Variable.
Gives content managers the ability to choose from predefined content Chunks, with a specially configured MODX Template Variable (aka custom field or "TV").
A quick MODX CMS tip: how to add Where Conditions to Resource List TV input types to filter the Resources returned.