Distinguish between read and unread title font colors in the Timeline

[xiaohui]

Usually, to differentiate between read and unread titles, one of the following methods is used in many applications and operating systems:

Unread titles: Unread titles are often displayed in bold or bold and black font to make them stand out on the page.
Read titles: Read titles may be displayed in regular font and could use a lighter color, such as gray.
This visual contrast helps users quickly identify read and unread items, allowing them to easily keep track of content or messages they are interested in. H