feature/customizable color codes

[omeyenburg]

This should introduce more customizability regarding the colors.
Right now the colors (e.g. "white", "gray") have hard-coded hex color codes in dracula.sh. Though some users (like me :p) might want to change individual colors to match their preferences or are only interested in the status bar and not the color scheme itself.

With these changes, you can directly set the hex color code in the tmux.conf file like this:
set -g @dracula-color-[color name] "#[hex code]"

So changing the hex code of gray to pitch black would just be:
set -g @dracula-color-gray "#000000"

[Theoreticallyhugo]

heya, ive been thinking about something similar, but hadn't pushed it yet (#296).

while i like your idea, i still find it somewhat restricting, hence i would suggest a simple, but also more broad approach.

[ethancedwards8]

I'm on the fence about this. I like the idea, but this is a Dracula themed Tmux plugin, which has certain associated colors.

I think I'll go ahead and merge it anyways.