Disabling individual highlight groups

By default `CheckmateUncheckedMainContent` overrides whatever I have set up in `rendermarkdown.nvim`. This mostly affects the look of links when inside a list

<img width="448" height="151" alt="Image" src="https://github.com/user-attachments/assets/e9e8fb3c-ff3b-425c-a895-87a0b841dd00" />

Is there a way to disable an individual highlight group?