From 3122d36047e7833b296bb902a6a227937ebe1b50 Mon Sep 17 00:00:00 2001
From: Elliott Sales de Andrade <quantum.analyst@gmail.com>
Date: Wed, 29 Oct 2025 23:06:42 -0400
Subject: [PATCH 1/2] TST: Rename test_cm_stubs to be more general

---
 lib/matplotlib/tests/{test_cm_stubs.py => test_typing.py} | 0
 1 file changed, 0 insertions(+), 0 deletions(-)
 rename lib/matplotlib/tests/{test_cm_stubs.py => test_typing.py} (100%)

diff --git a/lib/matplotlib/tests/test_cm_stubs.py b/lib/matplotlib/tests/test_typing.py
similarity index 100%
rename from lib/matplotlib/tests/test_cm_stubs.py
rename to lib/matplotlib/tests/test_typing.py

From b7018203d0660b37efa8acd5d989da6d3427c8df Mon Sep 17 00:00:00 2001
From: Elliott Sales de Andrade <quantum.analyst@gmail.com>
Date: Thu, 30 Oct 2025 01:54:06 -0400
Subject: [PATCH 2/2] Add testing for rcParams Literal type hints

And also add some new ones that were missing.
---
 lib/matplotlib/tests/test_typing.py | 19 +++++++++++++++++++
 lib/matplotlib/typing.py            | 18 ++++++++++++++++--
 2 files changed, 35 insertions(+), 2 deletions(-)

diff --git a/lib/matplotlib/tests/test_typing.py b/lib/matplotlib/tests/test_typing.py
index 2305c91a5301..c9fc8e5b162f 100644
--- a/lib/matplotlib/tests/test_typing.py
+++ b/lib/matplotlib/tests/test_typing.py
@@ -1,8 +1,10 @@
 import re
+import typing
 from pathlib import Path
 
 import matplotlib.pyplot as plt
 from matplotlib.colors import Colormap
+from matplotlib.typing import RcKeyType, RcGroupKeyType
 
 
 def test_cm_stub_matches_runtime_colormaps():
@@ -30,3 +32,20 @@ def test_cm_stub_matches_runtime_colormaps():
     )
 
     assert runtime_cmaps == stubbed_cmaps
+
+
+def test_rcparam_stubs():
+    runtime_rc_keys = {
+        name for name in plt.rcParamsDefault.keys()
+        if not name.startswith('_')
+    }
+
+    assert {*typing.get_args(RcKeyType)} == runtime_rc_keys
+
+    runtime_rc_group_keys = set()
+    for name in runtime_rc_keys:
+        groups = name.split('.')
+        for i in range(1, len(groups)):
+            runtime_rc_group_keys.add('.'.join(groups[:i]))
+
+    assert {*typing.get_args(RcGroupKeyType)} == runtime_rc_group_keys
diff --git a/lib/matplotlib/typing.py b/lib/matplotlib/typing.py
index 10bbe6334328..3a9f74e2cfd1 100644
--- a/lib/matplotlib/typing.py
+++ b/lib/matplotlib/typing.py
@@ -217,6 +217,8 @@
     "axes.ymargin",
     "axes.zmargin",
     "axes3d.automargin",
+    "axes3d.depthshade",
+    "axes3d.depthshade_minalpha",
     "axes3d.grid",
     "axes3d.mouserotationstyle",
     "axes3d.trackballborder",
@@ -304,6 +306,7 @@
     "figure.titlesize",
     "figure.titleweight",
     "font.cursive",
+    "font.enable_last_resort",
     "font.family",
     "font.fantasy",
     "font.monospace",
@@ -318,6 +321,14 @@
     "grid.color",
     "grid.linestyle",
     "grid.linewidth",
+    "grid.major.alpha",
+    "grid.major.color",
+    "grid.major.linestyle",
+    "grid.major.linewidth",
+    "grid.minor.alpha",
+    "grid.minor.color",
+    "grid.minor.linestyle",
+    "grid.minor.linewidth",
     "hatch.color",
     "hatch.linewidth",
     "hist.bins",
@@ -492,7 +503,7 @@
     "ytick.minor.size",
     "ytick.minor.visible",
     "ytick.minor.width",
-    "ytick.right"
+    "ytick.right",
 ]
 
 RcGroupKeyType: TypeAlias = Literal[
@@ -524,6 +535,8 @@
     "figure.subplot",
     "font",
     "grid",
+    "grid.major",
+    "grid.minor",
     "hatch",
     "hist",
     "image",
@@ -546,6 +559,7 @@
     "scatter",
     "svg",
     "text",
+    "text.latex",
     "tk",
     "webagg",
     "xaxis",
@@ -555,5 +569,5 @@
     "yaxis",
     "ytick",
     "ytick.major",
-    "ytick.minor"
+    "ytick.minor",
 ]