The bit type fields are not displayed.

The bit type field in the query result set of SQL Editor is not displayed. How can I solve this problem? Thank you! As shown below:

I'm unable to reproduce your results so far. I tested with MySQL 8 and native driver. My results are attached below.
Which database driver do you use?

My database driver is: ADO.NET MySql.Data.MySqlClient

I tried with ADO.NET MySql.Data.MySqlClient and I got results consistent with native MySQL lib. For me it works fine.

Have you customized display formats for different datatypes? Maybe you have selected black color for bit type, and as a result, you can't see it with dark background?

Just set the displayed field type in the result set. As shown in the figure:

Great.

Just a note, the option that you used is for specific column names, in your case for "testbit". It won't work for a column named "something-else"until you set it explicitly. There is also another option in the global settings that sets colors by data types rather than column names.