Question about toolbar actions and filters

Hello,
I have a couple of questions about the toolbar:
1- Is it possible to change the order of the actions icons (I would like to display the view columns button after the filter one )
2- Is it possible to simply override the style of the checkbox without creating a custom filter with filterOptions and display ?
I would like to replace the filled square checkbox when checked to a simple check icon without square :
I'm not sure that using css without overriding the component would work since it is an MuiSvgIcon.

Thanks for your help