What font works best and where is the Default font selected?

Question

Is there a recommended font and preferred size (and minimum size) to use that will work best for the pcb silk-screening process to make it easy to see especially when debugging and troubleshooting? I read somewhere that the preferred font is Sans Serif with a 65 mil height for maximum legibility. When I open the properties for a Reference Designator, I see that I have the option of using TrueType or Stroke Font and for Stroke you must also choose a line Width. Selecting TrueType gives me the selection of using the TrueType fonts on my system but when select Stroke, I have a choice of Default, Sans Serif or Serif. Does anyone know where the Default is defined?

jimku · Answer

It turns out that I misunderstood the meaning of "Default" in the stroke font selection. I thought that Default was selected somewhere like in some global settings. It turns out that the Stroke Font actually has three options available. I found this on AD documentation:

Placing and Editing PCB Objects | Online Documentation for Altium Products

I think the third sentence above should say "Three Stroke-based font options are available - Default, Sans Serif, and Serif."

It goes on to say... The Default style is a simple vector font which supports pen plotting and vector photoplotting. The Sans Serif and Serif fonts are more complex and will slow down vector output generation, such as Gerber. The Stroke-based fonts are built into the software and cannot be changed.

So, Default style is actually a font type and not a font that is defaulted to.