Fix support for negative numbers in live control properties

Author: ubitux

CHANGELOG.md

@@ -14,6 +14,9 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 ### Changed
 - Mouse position is only updated when pressing down
 
+### Fixed
+- Negative numbers in live control properties
+
 ## [0.5.0] - 2025-07-03
 
 ### Added

shader_workshop/frag.py

@@ -107,7 +107,7 @@ def extract_control(line: str) -> Control | None:
     typ, name, com = m.group("type", "name", "com")
     ctl = _GL_TYPE_TO_CTL_CLS[typ](name)
     if com:
-        for m in re.finditer(r"(?P<key>\w+)\s*:\s*(?P<val>[\d\.,]+)", com):
+        for m in re.finditer(r"(?P<key>\w+)\s*:\s*(?P<val>[\d\.,-]+)", com):
             k, v = m.group("key", "val")
             if isinstance(ctl, ControlF32):
                 v = float(v)