Well, I ran out of RAM and programming space to use Adafruit's OLED library. Bummer. But, not to worry, there are other arduino libraries for graphics. Some of which use very little RAM. Like this one. 

This library uses minimal RAM and is a small enough library that I can use it with all the other code I've written. Perfect.

Well, except, the way that I made the images now no longer works. I have to convert all of the images to XBM, a different format from the ones that the adafruit library uses. And I couldn't get the images to be displayed on the bottom row. So they are on the top row now. Oh well. That's not a big deal.

So, to convert the images to XBM, I first had to scale the png images that I had to the correct pixel size. I'm using 26x32 for most of the images (so I can fit Fire, Water, Ice, Poison, and Lightning in 128 pixels. Lightning is a little smaller, so the rest can be 26 pixels wide). Quick Googling found this tool to resize the png to the correct size. I then used Convert.io to convert the file from a png to a XBM. You can then download the file and open it in notepad to see the bits (in hex). Copy that to arduino and store it into program memory, and we are good to go with new images. The water drop icon is shown below:

 {

0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 0x00, 0x00, 0x00, 0x30, 0x00, 0x00, 0x00, 0x78, 0x00, 0x00, 0x00, 0x78, 0x00, 0x00, 0x00, 0xFC, 0x00, 0x00, 0x00, 0xFC, 0x00, 0x00, 0x00, 0xFE, 0x01, 0x00, 0x00, 0xFE, 0x01, 0x00, 0x00, 0xFF, 0x03, 0x00, 0x00, 0xFF, 0x03, 0x00, 0x80, 0xFF, 0x07, 0x00, 0x80, 0xFF, 0x07, 0x00, 0xC0, 0xFF, 0x0F, 0x00, 0xC0, 0xFF, 0x0F, 0x00, 0xC0, 0xFF, 0x1F, 0x00, 0xE0, 0xFF, 0x1F, 0x00, 0xE0, 0xFF, 0x1F, 0x00, 0xE0, 0xFF, 0x1F, 0x00, 0xE0, 0xFF, 0x1F, 0x00, 0xF0, 0xFF, 0x3F, 0x00, 0x30, 0xFF, 0x3F, 0x00, 0x20, 0xFF, 0x1F, 0x00, 0x60, 0xFF, 0x1F, 0x00, 0x60, 0xFE, 0x1F, 0x00, 0xE0, 0xFC, 0x1F, 0x00, 0xC0, 0xF0, 0x0F, 0x00, 0x80, 0xE3, 0x07, 0x00, 0x80, 0xFF, 0x07, 0x00, 0x00, 0xFE, 0x01, 0x00, 0x00, 0x78, 0x00, 0x00, };

Isn't it beautiful ;) ?