diff --git a/stubs/openpyxl/openpyxl/styles/cell_style.pyi b/stubs/openpyxl/openpyxl/styles/cell_style.pyi
index c15f7e6d1..630bf9fd1 100644
--- a/stubs/openpyxl/openpyxl/styles/cell_style.pyi
+++ b/stubs/openpyxl/openpyxl/styles/cell_style.pyi
@@ -1,34 +1,36 @@
 from _typeshed import ConvertibleToInt, Incomplete, Unused
 from array import array
-from collections.abc import Iterable
-from typing import ClassVar
+from collections.abc import Iterable, MutableSequence
+from typing import ClassVar, Generic, TypeVar
 from typing_extensions import Literal, Self
 
-from openpyxl.descriptors import Strict
 from openpyxl.descriptors.base import Bool, Integer, Typed, _ConvertibleToBool
 from openpyxl.descriptors.excel import ExtensionList
 from openpyxl.descriptors.serialisable import Serialisable
 from openpyxl.styles.alignment import Alignment
 from openpyxl.styles.protection import Protection
 
-class ArrayDescriptor:
-    key: Incomplete
-    def __init__(self, key) -> None: ...
-    def __get__(self, instance: Serialisable | Strict, cls: Unused): ...
-    def __set__(self, instance: Serialisable | Strict, value) -> None: ...
+_T = TypeVar("_T")
+
+class ArrayDescriptor(Generic[_T]):
+    key: int
+    def __init__(self, key: int) -> None: ...
+    def __get__(self, instance: MutableSequence[_T], cls: Unused) -> _T: ...
+    def __set__(self, instance: MutableSequence[_T], value: _T) -> None: ...
 
 class StyleArray(array[int]):
     tagname: ClassVar[str]
-    fontId: ArrayDescriptor
-    fillId: ArrayDescriptor
-    borderId: ArrayDescriptor
-    numFmtId: ArrayDescriptor
-    protectionId: ArrayDescriptor
-    alignmentId: ArrayDescriptor
-    pivotButton: ArrayDescriptor
-    quotePrefix: ArrayDescriptor
-    xfId: ArrayDescriptor
+    fontId: ArrayDescriptor[int]
+    fillId: ArrayDescriptor[int]
+    borderId: ArrayDescriptor[int]
+    numFmtId: ArrayDescriptor[int]
+    protectionId: ArrayDescriptor[int]
+    alignmentId: ArrayDescriptor[int]
+    pivotButton: ArrayDescriptor[int]
+    quotePrefix: ArrayDescriptor[int]
+    xfId: ArrayDescriptor[int]
     def __new__(cls, args: bytes | bytearray | Iterable[int] = [0, 0, 0, 0, 0, 0, 0, 0, 0]) -> Self: ...
+    def __init__(self, args: bytes | bytearray | Iterable[int] = [0, 0, 0, 0, 0, 0, 0, 0, 0]) -> None: ...
     def __hash__(self) -> int: ...
     def __copy__(self) -> StyleArray: ...
     def __deepcopy__(self, memo: Unused) -> StyleArray: ...
diff --git a/stubs/openpyxl/openpyxl/styles/styleable.pyi b/stubs/openpyxl/openpyxl/styles/styleable.pyi
index 4dfe4d235..50aef163e 100644
--- a/stubs/openpyxl/openpyxl/styles/styleable.pyi
+++ b/stubs/openpyxl/openpyxl/styles/styleable.pyi
@@ -1,46 +1,48 @@
 from _typeshed import Incomplete, Unused
-from warnings import warn as warn
+from collections.abc import Iterable
 
-from openpyxl.descriptors import Strict
 from openpyxl.descriptors.serialisable import Serialisable
 
+from .named_styles import NamedStyle
+from .proxy import StyleProxy
+
 class StyleDescriptor:
-    collection: Incomplete
-    key: Incomplete
-    def __init__(self, collection, key) -> None: ...
-    def __set__(self, instance: Serialisable | Strict, value) -> None: ...
-    def __get__(self, instance: Serialisable | Strict, cls: Unused): ...
+    collection: str
+    key: str
+    def __init__(self, collection: str, key: str) -> None: ...
+    def __set__(self, instance: StyleableObject, value: Serialisable) -> None: ...
+    def __get__(self, instance: StyleableObject, cls: Unused) -> StyleProxy: ...
 
 class NumberFormatDescriptor:
     key: str
     collection: str
-    def __set__(self, instance: Serialisable | Strict, value) -> None: ...
-    def __get__(self, instance: Serialisable | Strict, cls: Unused): ...
+    def __set__(self, instance: StyleableObject, value: str) -> None: ...
+    def __get__(self, instance: StyleableObject, cls: Unused) -> str: ...
 
 class NamedStyleDescriptor:
     key: str
     collection: str
-    def __set__(self, instance: Serialisable | Strict, value) -> None: ...
-    def __get__(self, instance: Serialisable | Strict, cls: Unused): ...
+    def __set__(self, instance: StyleableObject, value: NamedStyle | str) -> None: ...
+    def __get__(self, instance: StyleableObject, cls: Unused) -> str: ...
 
 class StyleArrayDescriptor:
-    key: Incomplete
-    def __init__(self, key) -> None: ...
-    def __set__(self, instance: Serialisable | Strict, value) -> None: ...
-    def __get__(self, instance: Serialisable | Strict, cls: Unused): ...
+    key: str
+    def __init__(self, key: str) -> None: ...
+    def __set__(self, instance: StyleableObject, value: int) -> None: ...
+    def __get__(self, instance: StyleableObject, cls: Unused) -> bool: ...
 
 class StyleableObject:
-    font: Incomplete
-    fill: Incomplete
-    border: Incomplete
-    number_format: Incomplete
-    protection: Incomplete
-    alignment: Incomplete
-    style: Incomplete
-    quotePrefix: Incomplete
-    pivotButton: Incomplete
+    font: StyleDescriptor
+    fill: StyleDescriptor
+    border: StyleDescriptor
+    number_format: NumberFormatDescriptor
+    protection: StyleDescriptor
+    alignment: StyleDescriptor
+    style: NamedStyleDescriptor
+    quotePrefix: StyleArrayDescriptor
+    pivotButton: StyleArrayDescriptor
     parent: Incomplete
-    def __init__(self, sheet, style_array: Incomplete | None = None) -> None: ...
+    def __init__(self, sheet, style_array: bytes | bytearray | Iterable[int] | None = None) -> None: ...
     @property
     def style_id(self) -> int: ...
     @property