I added this line to the config for the name column in the basic example:
filterable: { filterField: { minWidth: 350 } }
And the filter looks like this:
As you can see in the screenshot the 'Filter' input width has increased but the filter pop up hasn't so it doesn't really matter. It looks like this was noticed and a feature request was created in this forum post: viewtopic.php?f=43&t=18203&p=90071&hilit=filter+width#p90071
Is that feature request going to be completed? Or is there a work around for this issue?