feat(pyreverse): add support for colorized output for mmd and html

doc/whatsnew/fragments/10242.feature

@@ -0,0 +1,3 @@
+`pyreverse`: add support for colorized output when using output format `mmd` (MermaidJS) and `html`.
+
+Closes #10242

pylint/pyreverse/mermaidjs_printer.py

@@ -64,6 +64,9 @@ def emit_node(
             self.emit(line)
         self._dec_indent()
         self.emit("}")
+        # apply style for colored output
+        if properties.color and properties.color != self.DEFAULT_COLOR:
+            self.emit(f"style {name} fill:{properties.color}")
 
     def emit_edge(
         self,

tests/pyreverse/functional/class_diagrams/colorized_output/colorized.mmd

@@ -0,0 +1,46 @@
+classDiagram
+  class CheckerCollector {
+    checker1
+    checker2
+    checker3
+  }
+  style CheckerCollector fill:#77AADD
+  class ElseifUsedChecker {
+    msgs : dict
+    name : str
+    leave_module(_: nodes.Module) None
+    process_tokens(tokens: list[TokenInfo]) None
+    visit_if(node: nodes.If) None
+  }
+  style ElseifUsedChecker fill:#99DDFF
+  class ExceptionsChecker {
+    msgs : dict
+    name : str
+    options : tuple
+    open() None
+    visit_binop(node: nodes.BinOp) None
+    visit_compare(node: nodes.Compare) None
+    visit_raise(node: nodes.Raise) None
+    visit_try(node: nodes.Try) None
+    visit_trystar(node: nodes.TryStar) None
+  }
+  style ExceptionsChecker fill:#44BB99
+  class StdlibChecker {
+    msgs : dict[str, MessageDefinitionTuple]
+    name : str
+    deprecated_arguments(method: str) tuple[tuple[int | None, str], ...]
+    deprecated_attributes() Iterable[str]
+    deprecated_classes(module: str) Iterable[str]
+    deprecated_decorators() Iterable[str]
+    deprecated_methods() set[str]
+    visit_boolop(node: nodes.BoolOp) None
+    visit_call(node: nodes.Call) None
+    visit_functiondef(node: nodes.FunctionDef) None
+    visit_if(node: nodes.If) None
+    visit_ifexp(node: nodes.IfExp) None
+    visit_unaryop(node: nodes.UnaryOp) None
+  }
+  style StdlibChecker fill:#44BB99
+  ExceptionsChecker --* CheckerCollector : checker1
+  StdlibChecker --* CheckerCollector : checker3
+  ElseifUsedChecker --* CheckerCollector : checker2

tests/pyreverse/functional/class_diagrams/colorized_output/colorized.rc

@@ -1,3 +1,3 @@
 [testoptions]
-output_formats=puml
+output_formats=puml,mmd
 command_line_args=-S --colorized --max-color-depth=2