Slider style options need updating

[shakeshuck]

The slider control now has an 'upward option (so that 0 can be at the bottom).
It would be nice if this could be included in Designer.
Thanks!

[Metaxal]

Hi, nice to know some people still use MED :)

I have little time right now, but I believe it's really just a matter of replacing
this line:

                      (prop:some-of '(deleted plain) '()))

with

                      (prop:some-of '(deleted upward plain) '()))

You can even submit a PR if you want, or wait for a couple of weeks until I can get to it and test it properly.

[shakeshuck]

Thanks for the response. If I get up the nerve to play with Git, I'll see if I can work it out.
I've noticed there are some other improvements in the GUI library as well, e.g. scroll bars, so it might be worth taking a quick look through the docs for changes.