Change background style on tab pages

[MW]

How can I change the background color/style on the tab pages of a multiple page form? It defaults to the usual drab gray, and there's nothing on the properties page to change it for the tab page, just for the background on the main form.

Thanks

 

[Jonathan Kok]

If you change the 'Back Style' of the tab to 'Transparent', and change the colour of your form, that sort of works. Except the actual tabs will still be grey.