Using Product Customiser
You can move the dialogue boxes by clicking and dragging them.
Choose your text colour:
In the Text Colour dialogue box, click on the small coloured square to choose your text colours
Select the text you want to check the size of. In the object controls dialogue box you will see the width and height of your text, check the size units at the top to see if you're using cm, inches or feet.
There is currently no option to shadow or outline.
The rest should be fairly self explanatory, if not please give us a call.