Hello Jesper

Thank you for your purchase.

1. Can you please provide me with the URL where I can see this table? You can change the color of the filters using custom CSS:

Text filter:

input.form-control.wdt-filter-control.text_filter {
    color: white;
}

Select-box filter:

span.filter-option.pull-left {
    color: white;
}

2. This is because you initially saved the column as single-line string which is limited to 255 characters. If you want to alter the existing column, you need to do it through the database first. Go to the "Editing" tab, and see what the "MySQL table name for editing" is. Then access your database, and find that table. Click on the "Structure" tab and edit this column. Change "VARCHAR" to "TEXT" and remove the "Length/Values" (which will be set to 255). After that access column settings in wpDataTables and change it to "Multi-line string".

Hi again Jesper.

Actually, you can remove the previous CSS and add only this:

.wpDataTablesFilter input {
    color: white !important;
}

It will change the input color of all filters to white.

Sorry about that, Jesper, the global search is different.

You can use this:

.wpDataTablesWrapper .dataTables_filter input {
color: white !important;
}