Is there a way I can dynamically change the decoration colors for a single window with i3? I'm talking about each window having its own independent border color, for example, while new windows obeying to the default.
If not, would this be a difficult feature to implement? It doesn't look like it and I'd be willing to implement it myself, but I'm not very familiar with i3's codebase. Which sections of the code would you recommend me taking a look at?