Block Simplicity is a simplistic 16x resource pack with it's own style slightly inspired by default. It is currently not finished and only textures around 30 blocks. Block Simplicity right now only textures blocks and will for a while, but is planned to texture everything. What it textures right now is mainly just your everyday blocks, for example dirt, stone, oak wood.

Make sure your graphics are on fancy or certain textures may not look right.

I assure you this is not a rip off of OCD. Yes  the style is very related, but my blocks regulary include 3 colors instead of 2, and have different color tones. Also some textures are completely differen't.