UPDATE: I also just uploaded the fix for the post processing shaders, so now you can again choose from bloom, smoothing and the old school pixel shader as before.
I actually was able to tweak the pixel shader in two ways. First, the sky on planets no longer has any transparency sorting problems, This caused the sky to flash annoyingly. This should no longer happen.
Secondly, I added a text file called "pixel_size.txt" to the game folder. It contains a small bit of text and the number 3. This number determines the pixel size in the old-school pixel shader. 3 is standard. 1 will make the pixels match your screen resolution, and higher then 3 will increase the size of the pixels ... just added it there in case people want to tweak things a bit.
What's the point of having it set to 1 you ask? Well, it also uses a posterizing effect for the colors. I thought it looked kind of neat without the pixel effect. I may add that in as it's own separate shader, but right now it is linked to the old school pixel shader...
ORIGINAL MESSAGE: The "Testing" version of Star Explorers has been updated to 3.1. This addresses just one issue. When you return to a cave, it should properly load the water and/or lava.
Having to update the game's scripts to work in the newer engine has given me an opportunity to streamline a few things too. It's all back-end stuff, so you may not notice anything new, but I think this version should be more stable and less prone to crashes.