Create editor without any styles

Is it possible to create an editor that does not inject any styles besides the essential for the editor to function as it should? No borders, colors, etc.

Depending on what you mean by styles, yes, by omitting the extensions you do not want you can create a simpler editor.

I tried to create a minimal example, but it still seems to add some theme classes, outlines etc. Is there any way to omit this altogether?