tk2dCamera mini-tutorial.
1. Create sprite collection / font, and make sure you tick "Use tk2d Camera". You will not need to set up ortho size / height as you'd normally need to. Set up as usual, and don't forget to commit.
2. In the scene, delete the Main Camera, and "Create/tk2d/Camera"
3. Create a sprite as usual - if you set up the sprite collection as in step 1, it will automatically be pixel perfect, always. Otherwise, click "1:1" to make other sprites pixel perfect. You may need to click commit on your sprite collections again for this to work properly. You will see an error in the log if this is the case.
tk2dCamera Anchor mini-tutorial.
1. Click on the camera created above, and "Create Anchor". You will have an anchor object as a child to this camera.
2. Select this anchor object, and set it up as you like - offset is the offset from the anchor. For instance if your anchor wants to be 5 pixels in from the bottom right, simply select "BottomRight" as anchor, and set offset to -5, 5 (5 pixels in horizontally, 5 pixels up).
3. Create sprites as children to this object (simply select the object, and "Create/tk2d/Sprite" will automatically parent them and these objects will now automatically be anchored.