Add chameleon theme to themes.gitconfig (#1062)

themes.gitconfig

@@ -296,3 +296,34 @@
        bold yellow => syntax "#f4ffe0"
     zero-style = syntax
     whitespace-error-style = "#aaaaaa"
+
+[delta "chameleon"]
+    #author: https://github.com/AirOnSkin
+    dark = true
+    line-numbers = true
+    side-by-side = true
+    keep-plus-minus-markers = true
+    syntax-theme = Nord
+    file-style = "#434C5E" bold
+    file-decoration-style = "#434C5E" ul
+    file-added-label = [+]
+    file-copied-label = [==]
+    file-modified-label = [*]
+    file-removed-label = [-]
+    file-renamed-label = [->]
+    hunk-header-style = omit
+    line-numbers-left-format = " {nm:>1} │"
+    line-numbers-left-style = red
+    line-numbers-right-format = " {np:>1} │"
+    line-numbers-right-style = green
+    line-numbers-minus-style = red italic black
+    line-numbers-plus-style = green italic black
+    line-numbers-zero-style = "#434C5E" italic
+    minus-style = bold red
+    minus-emph-style = bold red
+    plus-style = bold green
+    plus-emph-style = bold green
+    zero-style = syntax
+    blame-code-style = syntax
+    blame-format = "{author:<18} ({commit:>7}) {timestamp:^12} "
+    blame-palette = "#2E3440" "#3B4252" "#434C5E" "#4C566A"