While the messages are timestamped, it would be great if there were some stronger visual clues as to which messages are new.

既然每条消息都是时间戳，那么有一些显眼的视觉提示指明哪条消息是新的话将会更好。

youdao

No visual clues: a liar won't get a long nose like Pinocchio but you can catch them out by listening to their tone of voice.

没有可视线索：骗子不会像匹诺曹那样变成长鼻子，但是你能靠听声音来揪出他们。

youdao

Sometimes a tester finds the tested object by visual clues, such as the relative position in relationship to an obvious image.

有时测试人员会通过可见的线索来搜索测试的对象，例如关系中的相对位置。

youdao

Repeated visual clues allow us to follow the story in the images of the trial and the Africans' repatriation.

WSJ: Rising Up: Hale Woodruff's Murals From Talladega College | High Museum of Art | From Mutiny to Harmony | By Karen Wilkin

Korzak and Redling say investigators routinely identify both technical and visual clues in videos for evidence to identify criminals and to rescue victims.

CNN: Pretzel bag narrows search for child abuser to U.S.

In many regions of Mars, dust-devil tracks and shadows have been seen from orbit, but those visual clues have not been seen in Gale Crater.

ENGADGET: Curiosity rover finds radiation levels on Mars are safe for humans