Salesforce Lightning (SLDS 2)
The Salesforce renderer is built on SLDS 2 (@salesforce-ux/design-system-2, Cosmos theme) — a global CSS framework of slds-* classes and --slds styling hooks, applied to Mateu’s own light-DOM markup. Use it when your UIs need to look like Salesforce or when they will be embedded inside an existing Salesforce application.

Demo: https://slds2.mateu.io/
Add to your project
Section titled “Add to your project”<dependency> <groupId>io.mateu</groupId> <artifactId>slds-lit</artifactId> <version>3.0-alpha.219</version></dependency>Characteristics
Section titled “Characteristics”- Matches the Salesforce Lightning (SLDS 2 / Cosmos) look and feel
- Good choice for ISVs building on the Salesforce platform
- Pure CSS framework — no Salesforce-platform runtime required