Just to be clear, this isn't really an issue with Microsoft or Visio - millions of stencils are just fine all across the world. This is a problem with the stencil set Splunk supplied - it's generally OK, but there's a handful of design decisions that could be revisited, a few of which:
A couple out of the 100+ stencils supplied have a different font size/weight (a few are bold, IIRC).
Several of them have a font size such that their own text wraps. A few of the longer-captioned ones have this problem and it's super ugly.
The "text" or "captions" for many of them were done in an unusual way, and it seems to vary from stencil to stencil. I did find a way to edit the text, but it took a LOT more work than expected.
On many or most, the color choices used for various pieces means that in certain themes they're unreadable blobs. It is most unfortunate that the default theme is one that's affected by this, as shown by your screenshot. This I think is a problem introduced by changes MS made to Visio after the stencil set was created, so Microsoft may be partly to blame for this one. 🙂
What can I do?
I have it on good authority that Splunk was working on a new set of stencils perhaps a year or two ago. Talk to your rep, have them lean on Splunk to update and clean up their stencils. They've already got a great start, it won't take a whole lot to tidy up and fix these last little pieces and make them really great.
