I think there are ways to accomplish the engraved look, poke around on the forum. I do agree the UI needs some improvements. This is essentially V1 of the new UI, so let's hope improvements are soon in the works.
Can get similar effect to engrave/emboss using line widths, borders and colours. See attached.
Also more interestingly I see FM12 users 'box-shadow' css property in its themes although no control is currently offered through FM's UI.
Meaning can dig into CSS theme and adapt button style at will.. with an almost infinate number of styles.
You can see this property in action (usally as a highlight) when click into a field on a number of the built-in themes.
Old_Buttons.fmp12.zip 12.2 K
You have engraved/embossed labeled backwards; but I see that it works.
You can simulate those effects easily enough, but I think the key point is: why should you have to?
The second major point, of course, is what I expect developers are going to be asking about everything from now on: If I do it, how will it affect performance?