feat: Added neon theme (DenverCoder1#473)

Co-authored-by: Jonah Lawrence <[email protected]>

Author: anirban12d

docs/themes.md

@@ -121,6 +121,7 @@ Note: Theme names provided are case-insensitive and any use of underscores will
 |         `date-night`          | ![image](https://user-images.githubusercontent.com/20955511/221585779-db7f394d-b3c6-49e4-ad75-bbba97530765.png)  |
 |        `one-dark-pro`         | ![image](https://user-images.githubusercontent.com/20955511/221585805-1d10928a-286c-4945-95ed-a7317e56692f.png)  |
 |            `rose`             | ![image](https://user-images.githubusercontent.com/20955511/221585827-e566b73a-e0c0-4711-b48c-667e6500d44e.png)  |
+|            `neon`             | ![image](https://user-images.githubusercontent.com/20955511/225303106-8c901c48-732e-49ae-a2e6-8733254536eb.png)  |
 
 ### Can't find the theme you like?
 

src/themes.php

@@ -1358,4 +1358,16 @@
         "sideLabels" => "#8D192B",
         "dates" => "#862931",
     ],
+    "neon" => [
+        "background" => "#000000",
+        "border" => "#FFFFFF",
+        "stroke" => "#FFFFFF",
+        "ring" => "#00EAD3",
+        "fire" => "#00EAD3",
+        "currStreakNum" => "#FF449F",
+        "sideNums" => "#00EAD3",
+        "currStreakLabel" => "#FF449F",
+        "sideLabels" => "#00EAD3",
+        "dates" => "#FFF5B7",
+    ],
 ];