This is the most wacky icon situation i have noticed.

See how the top of the list has 'Mode". There is a yellow cube, and the letters "Fixed siz". In the list of options there are two that have a yellow cube, just a slightly different shade, so most people will not trust this icon to tell them what is currently selected. There are also other options that start with the same line of text, "Fixed size box", "Fixed size cylinder", "Fixed size tube", so the text doesn't tell us in and of itself either.

We might know which is default, but, hey, i like to make sure of things, because a mistake in manufacture will typically cost a cutter and or a job and or another aspect(s) of the machine, which could cost say $25 up to thousands of dollars.
The dialog box cannot be resized to make the full text visible.
So the next step might be to click on the down arrow to open the drop down menu, but even then it doesn't show which is selected. We have to either select the one we want, then we know what is selected, or work it out via deduction. We can see that the top line shows a bright cube, and we can then look down the list for a bright cube, then read across to the text, to find out what is selected.
Compare all this shenanigans to there not being icons and being able to read the full line of text in the first place, a quick glance and it would be very clear.
After having gone through this, writing this, i can see that the line does kind of read backwards, but actually, not really. The icon is a cube, but if somehow a person interprets that as a box, then the line reads 'box fixed siz'. But to me it reads 'icon fixed siz'. Others might read it as 'cube fixed siz'.
I just think it makes so much more sense to make it read 'Fixed size box'.