Here are a couple ideas for the mark quanta mark I just made:
![](http://i.imgur.com/2qC6rgI.png)
![](http://i.imgur.com/DO4b4LH.png)
Or as scaled to normal mark size:
![](http://i.imgur.com/2qC6rgI.png)
![](http://i.imgur.com/DO4b4LH.png)
You can copy the image to your computer then load it into the card editor directly if you use a custom background... You'll have to photoshop it in over the
![Entropy :entropy](https://elementscommunity.org/forum/Smileys/solosmileys/../../../images/Misc/entropy18x18.png)
symbol on your own though.