Now you know stainable wood filler takes stain, it just does not take stain to match the rest of the wood.

Staining and finishing sounds simple, but is actually quite complicated. The best results come after lots of trial and error.

You might try one of the following---as long as you have not applied a finish:

A darker stain, applied with a cotton cloth, on the lighter areas, so you can wipe it off. You will need to experiment with the time left on.

A darker wood dye and apply it with a cotton swab. Since wood dye is absorbed by the wood faster and more deeply than stain, here again you might need to start with a dye just a little darker, and use two applications. Then try a darker, and so on.

One item, small darker areas are less noticeable than the lighter variety.

In the future, it is better to stain first and select a filler to match the final color.

A picture would sure help and an idea of what you are trying to achieve.I've done thousands of furniture refinish and restoration projects but find it hard to give any advice with the limited info you provided.

You're wanting to refinish a piece and don't even post the tone or color your going for ? What type of wood? What you're trying to match?

I can't fix the veneer without replacing it. I have decided to just stencil over the mistakes that were made. I'm hoping for the best. I

Can you show a picture of the piece and some of the problem areas.

You can probably fake it with hand-applied stain to just the areas that need it, and maybe some camouflaging faux graining.

I was in our local Ace Hardware store a couple of days ago and found a kit manufactured by Rustoleum called Rejuvenate. Has six color markers and cost about $6.95. I tried one(cherry) on an old dresser and it was ok.