[Jamie]

I recommend Timber Mate. It is pre-colored and it does seem to accept the tint of stain or toner. I really can't say for sure, because it is colored... I use walnut. It is the only wood filler I've found that is virtually invisible under toner.

.. and I recommend that you buy the classic toner to finish your cabinet, and some "tone finish toner" to hide the repair spots. Get both in the same color. Tone Finish Toner is less clear than regular toner. You can use it to hide repairs, but use it sparingly because it is murky looking.