Homebrew Adding my own default border to Lameboy

[Silent Storm]

I like playing gameboy games on my DS, sadly, games with borders in Lameboy don't display GBC colours, and Goomba Colour is not that good compared to Lameboy in my opinion and seeing as some gbc games don't have a border, I have decided that I want to add a default gameboy border to my Lameboy so I can fill in the black space when playing a game.

What I want to know is:

1. Is it possible for me to do this?
2. How complicated is it to add a default border?
3. Will adding this border potentially mess up gameplay/graphics?

 

[DanTheManMS]

Only thing I can think of is Goomba Paletted which lets you choose your own border, but then you'd lose all GBC and SGB support anyway. I don't think it's possible to change the border in Lameboy, unless perhaps there exists a method to artificially insert your own SGB border into a game.