bat: set theme to Coldark-Dark

.config/fish/config.fish

@@ -1,4 +1,5 @@
 set -gx BAT_STYLE plain
+set -gx BAT_THEME Coldark-Dark
 set -gx EDITOR hx
 set -gx LANG en_US.UTF-8
 set -gx PAGER 'less --tabs=4 --jump-target=.25 -iRFM'

.config/git/config

@@ -15,6 +15,7 @@
 	pager = delta
 [delta]
 	features = blame-style diff-style
+	syntax-theme = Coldark-Dark
 [delta "blame-style"]
 	blame-code-style              = syntax
 	blame-format                  = " {commit:<8} {author:^16.15} {timestamp:>10} "