improve boolean icon

[caseyhans]

Change the symbol for 'author contacted' from a minus to a times. This changes the symbol in other locations too, but it's prety minor.

[shapiromatron]

Ahh yes, this is a much better icon. I searched the codebase and saw it was used in some other places too - do you think it should be replaced in these cases too, or is there ever a case for the minus?

[caseyhans]

Ahh yes, this is a much better icon. I searched the codebase and saw it was used in some other places too - do you think it should be replaced in these cases too, or is there ever a case for the minus?

Most of these cases are using minus as a minimize symbol, which is a good use case for that symbol.
The exception is in the study list, where minus indicates that a study is not of a particular type (i.e., bioassay, epidemiology, etc.). I tried swapping for the times symbol here but I felt that the similarity to the check mark made it harder to determine the study type(s) at a glance.

Example:

[shapiromatron]

Ahh yes, this is a much better icon. I searched the codebase and saw it was used in some other places too - do you think it should be replaced in these cases too, or is there ever a case for the minus?

Most of these cases are using minus as a minimize symbol, which is a good use case for that symbol. The exception is in the study list, where minus indicates that a study is not of a particular type (i.e., bioassay, epidemiology, etc.). I tried swapping for the times symbol here but I felt that the similarity to the check mark made it harder to determine the study type(s) at a glance.

Completely agree. Nice job!