I have pieces of African mahogany the color of hay, dark chocolate, and clay. Your mahogany just isn’t light brown. Unless you were the one who first installed them and remember the color. In that case take a core sample from the bottom of the door and see how far in the darkening goes to see how much you would need to sand.

It is not nearly as hard or as stiff as hard maple. The “sycamore maple” mentioned below may be something like london plane tree (which is either a maple family wood or a hybrid). That is also harder than khaya. Khaya is somewhat coarse grained (it’s very musical, though) and can splinter much more easily than honduran mahogany.

I’ve made guitars out of both and made guitar necks out of curly hard maple – khaya and honduran (honduran and cuban can both vary a lot in density) are not similar to hard maple. I think you will get a different timbre out of a khaya neck, too

I use it for guitar necks successfully

In Europe, it’s not made of hard maple but of (curly) sycomore maple, which isn’t that hard. Maybe that could help you…

In my experience, most oil finishes (like a natural watco danish oil) darken african mahogany.

That pretty ribbon grain presents real problems for a carver. There are areas where it carves beautifully, with consistent density and even grain. Then there are areas that are “chippy” and don’t carve well from any direction. They provide a wonderful opportunity to perfect ones slicing cut. The end result is usually well worth the frustration but know going in that patience will be tested along the way.