Use the alpha attribute.
For example:
<button name="button" caption="Click here" x="5" y="5" w="100" h="24" alpha="0.7"/>
I do need to document the xml system properly, listing all the attributes available. For now, if you look in the xmlfrygui.bmx file you should be able to work them out in the ParseGadgets() function. Not ideal, I know.
I've also just noticed that the formatting of the xml files isn't great. They should be fine under OSX but not on Windows. I'll touch them up too.
For example:
<button name="button" caption="Click here" x="5" y="5" w="100" h="24" alpha="0.7"/>
I do need to document the xml system properly, listing all the attributes available. For now, if you look in the xmlfrygui.bmx file you should be able to work them out in the ParseGadgets() function. Not ideal, I know.
I've also just noticed that the formatting of the xml files isn't great. They should be fine under OSX but not on Windows. I'll touch them up too.