Add support for extra themes, other small changes, drop btop

src_files/.local/scripts/theme-set

@@ -26,9 +26,8 @@ theme-update-neovim &
 # theme-update-obsidian # TODO: implement
 # theme-update-browser # TODO: implement
 # theme-update-reaper # TODO: implement
-theme-update-system-monitor # TODO: do i actually want this? or just use htop monochrome mode and let it use terminal colors
 # theme-update-gimp # TODO: possible and actually desired? my main use case is just a blackboard, maybe let it be
 # theme-update-mutt # TODO: possible and actually desired?
 # theme-update-irc # TODO: possible and actually desired?
 
-theme-update-wallpaper &
+theme-update-wallpaper "zz-default-for-theme" &

src_files/.local/scripts/theme-update-system-monitor

@@ -1,7 +0,0 @@
-#!/bin/zsh
-
-# TODO: htop even possible? maybe can change what colors it sees from terminal itself
-# pkill -SIGUSR1 htop
-# pkill -SIGUSR2 htop
-
-pkill -SIGUSR2 btop

src_files/.local/scripts/theme-update-wallpaper

@@ -15,11 +15,11 @@ NESTED_SWIFT_BLOCK
     )
 }
 
-# TODO: decide if and how to make this work for cycling through wallpapers per theme
-
 wallpaper_dir=$DIR_THEME_SETTINGS/.current-theme/wallpaper
 image_paths=($(find $wallpaper_dir -type f | sort)) 2> /dev/null
-target_wallpaper=${image_paths[@]:0:1}
+
+[[ $1 = "zz-default-for-theme" ]] && target_wallpaper=${image_paths[@]:0:1} ||
+    target_wallpaper=$(printf '%s\n' ${image_paths[@]} | fzf)
 [[ -z $target_wallpaper ]] && exit 0
 
 [[ "$OSTYPE" = *"darwin"* ]] && set_wallpaper_macos $target_wallpaper ||