Hello,
Thank you very much for choosing our theme and for contacting us.
As for the SVG:
You need to open your SVG icons file with some editor like Sublime Text or default system text editor and add width=”31″ height=”40″ attributes to your <svg>
tag like it is shown: http://prntscr.com/m4n0qw You can set your width and height, these values are just a sample.
Then you will need to re-upload your icons in WordPress Dashboard.
The WoodMart theme provides the option to show different headers on different pages. Please check the page and set the header you want to show on this page: https://xtemos.com/docs/woodmart/header-builder/set-different-header-specific-page/
If you have any questions please feel free to contact us.
Best Regards