Is there anyway to change selected "halo" for all layers

[ofirrosner]

Im using esri 100.15 / 200.4 (two different projects)

And i want to change the color and the with of the "halo" when selecting some graphic 

To change the color i found SelectionProperties , but i only have a color property (both in 100.15 and 200.4)

I don't want to create a composite symbol for every layer and create a logic accordingly
is there a way to make some generic code, or is there any property that i've missed

[dotMorten_esri]

At this point, only the selection halo color is settable as you've discovered.

[ofirrosner]

is there a way in-code i can achieve my goal?

[dotMorten_esri]

Apart from overriding the symbol or rendering a second symbol in a graphic overlay to highlight it, I can't think of any no.

[ofirrosner]

how can i override my symbol to add an halo
if i create a multi symbol layer, the 2 layers are on top of each other and not "on the side" normal regular selection