Saw wave actually reverse saw?

I have an EE/DSP background, but don't know anything about practically using synthesizers.

As early as the first lesson, when the GUI shows the icon for a "SAW" wave, it shows a waveform that starts at 1 and gradually decreases to 0. But a "sawtooth wave" --- https://en.wikipedia.org/wiki/Sawtooth_wave --- is the opposite... it starts at 0 and gradually increases to 1. The wave that starts at 1 and goes down is the "reverse sawtooth".

Is this a general difference between EE and synths? Do all synths say "SAW" when they mean what an engineer would call a "reverse sawtooth"? Is this just a weird detail/mistake that is just in Syntorial/Primer? Is the logo actually wrong and the waveform that is generate actually a sawtooth?