Re: SDL3 support

[Alfred M. Szmidt]

    The default scaling would be nice to change as well it isn't very
    useful, I think?  Resizing makes things totally unreadable, and
    somewhat hard to get back to the original scaling.

    I agree. For me, free resizing doesnt make any sense and I dont use it. I 
either use 1x on FullHD screen, or 2x on 4K
    screen. One option is to accept only integer numbers for scaling, other is 
allow only integer scaling on resizing.

   I don't agree! With the SDL2 backend, modest scaling works fine (it
   keeps the aspect ratio) both "upwards" and "downwards" (which
   should be useful on a laptop, which isn't high enough for a CADR
   screen).

I agree with BV :)

   But as I mentioned, I would ALSO like it if you could change the
   actual size in pixels, e.g. 1024 x 1024 (or larger).  There I would
   certainly accept certain fixed sizes only.

Would require .. microcode changes, and possibly microcode format
changes.  And other nasty stuff.