1) Pd crashes when you focus on the pd console, go to Edit > Font, and
stretch x and y by a value, say 120. After clicking OK, it's a crash.
This should be fixed with a Tk back port patch by Seb Shader on GitHub.
2) iemguis: when you update properties on the property dialog and hit
return,
-- if you hit "cancel", changes are already made (I think this might be
already mentioned somewhere)
As mentioned before, we need to save the original state when the dialog was opened, then re-apply it on cancel. I feel this is a bit too much of a change to make for a quick bugfix release, so it will need to wait until 0.52.
-- The "OK" button font turns white, and it's hard to read. [This font
color is also present on the Help > Find Externals "Show All" button.]
This is due to those buttons being the default active button, ie. "pressed" when the Enter key is pressed. Normally, the background when active is blue (or whatever tine setting you are using) and the foreground is white, so contrast is fine. For some reason, I'm not sure if this is Tk or Cocoa, if the button get's too big (ie. when Pd's font size is huge), the background color is no longer used so you have white text on a gray background. Hit the Tab button to watch the active focus leave the button and its font will turn black.
I looked at this a little but and it's not something I'm prepared to get into right now. Also, do you really use Pd with the UI font that large?