feat: add hacker-inverted theme (#753)

* feat: add hacker-inverted theme

* docs: add hacker-inverted theme

Author: ankddev

docs/themes.md

@@ -162,6 +162,7 @@ Note: Theme names provided are case-insensitive and any use of underscores will
 |      `telegram-gradient`      |                 ![image](https://github.com/user-attachments/assets/985c3e04-a5dd-4cba-a66e-d43ad9668af0)                  |
 |          `microsoft`          |                 ![image](https://github.com/user-attachments/assets/4c2cce9d-90b5-4e38-8422-656c5a78b4d9)                  |
 |       `microsoft-dark`        |                 ![image](https://github.com/user-attachments/assets/a5918d7d-f568-4012-b06f-d9cfacaece04)                  |
+|       `hacker-inverted`       |                 ![image](https://github.com/user-attachments/assets/b64c136a-827b-4177-98f9-28db59bba0ef)                  |
 
 ### Can't find the theme you like?
 

src/themes.php

@@ -2004,4 +2004,17 @@
         "dates" => "#7FBA00",
         "excludeDaysLabel" => "#7FBA00",
     ],
+    "hacker-inverted" => [
+        "background" => "#20C20E",
+        "border" => "#000000",
+        "stroke" => "#000000",
+        "ring" => "#000000",
+        "fire" => "#000000",
+        "currStreakNum" => "#000000",
+        "sideNums" => "#000000",
+        "currStreakLabel" => "#000000",
+        "sideLabels" => "#000000",
+        "dates" => "#000000",
+        "excludeDaysLabel" => "#000000",
+    ],
 ];