SearchandHighlight.jsx is an After Effects script with one purpose, highlight text. Acts like a normal search, so it’s easy to use. You can limit the search to a group of layers or search the entire composition. Has five different highlight types. Works with both text layer types: box text and point text.

Highlight settings:

• control speed, duration and delay
• add box padding.
• change color
• change stroke width
• add corner rounders

Soundtrack not included. Link here