Here are some examples:
* "The artist colorful her paintings with bright, bold strokes." (This implies the artist added vibrant colors to make the paintings more interesting.)
* "The speaker colorful his presentation with engaging anecdotes and humor." (This implies the speaker made the presentation more lively and engaging.)
While these uses are not grammatically incorrect, they are uncommon and may sound a bit unusual. It's more common to use verbs like "brighten," "liven up," "enliven," "embellish," or "enhance" to describe the act of making something more colorful.
Let me know if you have any other questions about using "colorful" or other words!