Filter dropdown width, background colors

[jscb]

Hello and thank you for this great library, it already helped me a lot.

I have a few questions:

1) is there a way to automatically adjust the width of the filter dropdown to the length of the autochoices or widen it by the width of scrollbar (so the dropdown items have always the same amount of letters visible as the table)?

2) is there a way to set different background colors (main filter row, dropdown items)?