This is already planned. Check it:

http://wilds.userecho.com/topics/2638-in-game-coin-display-would-it-be-a-useful-addition/

Better idea in my opinion is make one bigger stone sprite, and for get rocks you must use explosives. With ability to stack them, from big rock should drop few small stones and player can collect them. Also amount of loot should be random but not too much. 2-5 stones is enough in my opinion.

This works like a item shop but Instead of trading you can use only explosives and you must put/throw it close to rock.

Rez have in plans add companions instead of items with abilities. They give to player small buffs and follow you on the map.

You need more free manpower. Rome didn't build himself without cheap workers :D

He working now with something like space sim game and probably also he preparing his new mecha game for release beta.

One week without Rezoner is not end of the world, more patience :p

Edit: Or vacations lololo xD

Well more important than my post is Rez answer. He told why probably this can't be implemented. I like this idea bcus i also maked post about it, but at the end dev chooses what will be implemented :p

You not must use big amount of colours in such small icon. Simple black outline can looks better. Generally i like it :3

Some time ago i maked post about it and you can read Rez answer and what he think. Here is link to this post:

http://wilds.userecho.com/topics/1620-changes-in-the-new-update/

Left looks more as normal water, and righ looks like dark oceanic water. Both looks good but i think Instead of pink colour, white or bright blue can fit better.

I like it. This game need new mode like this, and i see we slowly going in this direction.