Question: We have a design for an app developed by an external agency and our business people seem to be happy with it. But it’s really terrible - the colours are too bright, the text is difficult to read and so on.

How can we persuade our business that it needs to be changed? We can’t just say “We don’t like it, it sucks.” We need to have valid points against this colour scheme.

I understand that colours are subjective. But are there any objective metrics that can show the difference between bad and good app colour scheme?

Answer: 
Add an expand / read more button or link at the end of the line. This way the user knows he can interact with it and view the longer text.

Can also add truncation. (Thats the three dots you're talking about)
Make the input an obvious input for the user. Users no how it works and behaves.

When they are not editing the text, break text to a new line so the full text is visible. Truncating is annoying and often not needed.

[![enter image description here](https://i.stack.imgur.com/DGWwL.png)](https://i.stack.imgur.com/DGWwL.png)

And when editing: (It's not a big issue that the input switches to a single line)

[![enter image description here](https://i.stack.imgur.com/D60gh.png)](https://i.stack.imgur.com/D60gh.png)