Themes not working under tmux ($TERM=tmux-256color)

[hamidpeywasti]

Hi, and thank you for this awesome project!

I've encountered an issue where manually added themes placed in ~/.config/musikcube/themes/ do not work when running musikcube inside tmux. The theme reverts to the default one or does not apply the customizations.

This only happens when $TERM is set to tmux-256color (which is the default in my tmux sessions). Outside of tmux, with $TERM=xterm-256color, the themes load and apply as expected.

Steps to reproduce:

Create a new theme in ~/.config/musikcube/themes/, e.g. mytheme.theme.

Launch musikcube normally (outside tmux) – theme appears and works correctly.

Launch musikcube inside a tmux session ($TERM=tmux-256color) – theme is ignored or not applied.