celeron55/minetest — pull request #268 by khonkhortisan (2012-10-18 19:29:23+00:00)
Title: Allow transparent image_buttons

Turns out there *was* a button under the blackened image!
Found by hmmmm, this fixes celeron55/minetest/issues/264.
Using this formspec instead of the other one:
```lua
on_punch = function(pos, node, puncher)
minetest.env:get_meta(pos):set_string("formspec",
"size[2,2]"..
"image[0,0;1,1;default_apple.png]"..
"image_button_exit[0,1;1,1;default_apple.png;apple2;]"..
"image[1,0;1,1;default_dirt.png]"..
"image_button_exit[1,1;1,1;default_dirt.png;dirt2;]"..
'')
end,
```
![four images](http://farm9.staticflickr.com/8191/8100697764_b8acd79323_b_d.jpg)
Don't pay any attention to the land behind the cotton. Just trying to worldedit a cone.