Hi Zu,
YES!
For example you may create a simple Font Editor with DesktopX.Form:

Then somewhere in you program must be several lines:
For each item in Array("obj1","obj2","obj3".....) '<== the names of textobjects you want to change fonts and font colors...
desktopx.object(item).SetFont FontName, Size, Bold, Italic, 0,0,0
desktopx.object(item).textcolor = textcolor
Next
That's all.