Fix528

py5_resources/py5_module/py5/decorators.py

@@ -84,7 +84,9 @@ def _hex_converter(arg):
                 if mcolors is not None:
                     return JInt(int("0xFF" + mcolors.to_hex(arg)[1:], base=16))
             except:
-                return None
+                raise RuntimeError(
+                    f"unknown color or unparsable color string '{arg}'"
+                ) from None
     elif isinstance(arg, (int, np.integer)) and 0x7FFFFFFF < arg <= 0xFFFFFFFF:
         return JInt(arg)
     elif colour is not None and isinstance(arg, colour.Color):

py5_resources/py5_module/py5_tools/colors/css4.py

@@ -22,3 +22,10 @@
 mcolor_css4 = None  # DELETE
 
 {mcolor_css4}
+
+
+def __getattr__(name):
+    if name in locals():
+        return locals()[name]
+    else:
+        raise AttributeError("unknown css4 color '" + name + "'")

py5_resources/py5_module/py5_tools/colors/mpl_cmaps.py

@@ -22,3 +22,10 @@
 mpl_cmaps = None  # DELETE
 
 {mpl_cmaps}
+
+
+def __getattr__(name):
+    if name in locals():
+        return locals()[name]
+    else:
+        raise AttributeError("unknown matplotlib colormap '" + name + "'")

py5_resources/py5_module/py5_tools/colors/xkcd.py

@@ -22,3 +22,10 @@
 mcolor_xkcd = None  # DELETE
 
 {mcolor_xkcd}
+
+
+def __getattr__(name):
+    if name in locals():
+        return locals()[name]
+    else:
+        raise AttributeError("unknown xkcd color '" + name + "'")