More theme updates!

By popular request we've added some new controls for the last few elements within a Malcolm! theme that you couldn't update - until now!

First up if you want to change where the logo on your hosted hub and hosted pages go on click you can now specify a link of your choice (the default is your hub home). You can also choose to open that link in a new window.  You do this in the header section of the theme you are managing.

You can also update the colour of text in Workflows, the background field colour and error highlight plus also change the colours of the grey shading, stroke and tag background. This is done via the general tab of the theme you are managing.