newsticker-html-renderer

newsticker-html-renderer is a variable defined in `newst-reader.el'.
Its value is

shr-render-region

Documentation:
Function for rendering HTML contents.
If non-nil, newsticker.el will call this function whenever it
finds HTML-like tags in item descriptions.
Possible functions include `shr-render-region', `w3m-region', `w3-region', and
`newsticker-htmlr-render'.
Newsticker automatically loads the respective package w3m, w3, or
htmlr if this option is set.

You can customize this variable.