Set the Opacity of a Button Background

[Paul Hibbert]

By adjusting some colour values and the ink mode I could achieve what I think you are looking for, however I may have misunderstood, because I don’t quite understand the bit about having 50% opacity of a clear background!

Link to demo stack with my interpretation: https://www.dropbox.com/s/xhjqlx0zhdeyq2f/Button%20Demo.livecode?dl=0

HTH

Paul

> On Mar 1, 2016, at 11:25 AM, Sannyasin Brahmanathaswami <brahma at hindu.org> wrote:
> 
> We looking at very simple button design:
> 
> 1)  Border color is on/white/2px
> 2)  background is set to clear (no color assignment and no icon)
> 3)  background opacity set to 50% # if we can figure out how....
> 4)  Button name/label white
> 
> Now... I realize that if # 2 above is true, then possibly, since there are no pixels at all in the background that the algorithm might not be possible from a video card point of view... so we *could* set the background to white and set the opacity to a grayscale?transparency value of say... 50%  but the idea is that the text of the button name/label remains fully, 100% opaque, even thought background has an alpha channel value (some level of transparency)
> 
> From my fiddling... (I could be missing something) this is not possible either with buttons of fields  or graphics.
> 
> The use case is, again, as discussed in another thread: we want visibility of the text on top of *any* image to be visible. We do this in print all the time... but we cannot separate the blending of the text label or text itself and the background of a button/field in LC... at least I have not found a way.