diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index ef8e42f3..ed784b99 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -5,21 +5,21 @@ on:
     branches:
       - master
     paths:
-      - '.github/workflows/test.yml'
-      - '**.py'
+      - ".github/workflows/test.yml"
+      - "**.py"
   pull_request:
     branches:
       - master
     paths:
-      - '.github/workflows/test.yml'
-      - '**.py'
+      - ".github/workflows/test.yml"
+      - "**.py"
 
 jobs:
   test:
     strategy:
       matrix:
-        python: ['3.6', '3.7', '3.8', '3.9']
-    runs-on: ubuntu-latest
+        python: ["3.6", "3.7", "3.8", "3.9"]
+    runs-on: ubuntu-20.04
     steps:
       - uses: actions/checkout@v2
       - uses: actions/setup-python@v2
diff --git a/config.py b/config.py
index 08b34004..dc0590b4 100644
--- a/config.py
+++ b/config.py
@@ -13,7 +13,7 @@ DIR_TEMPLATE = "templates"
 
 PROVIDERS = (
     "base",
-    "onprem"
+    "onprem",
     "aws",
     "azure",
     "digitalocean",
@@ -83,7 +83,7 @@ UPPER_WORDS = {
         "sa", "sc", "sts", "svc",
     ),
     "oci": ("oci", "ocid", "oke", "ocir", "ddos", "waf", "bm", "vm", "cdn", "vpn", "dns", "nat", "dms", "api", "id"),
-    "elastic": ("apm", "siem", "ece", "eck"),
+    "elastic": ("apm", "siem", "ece", "eck", "sql"),
     "generic": ("vpn", "ios", "xen", "sql", "lxc"),
     "outscale": ("osc",),
     "openstack": ("rpm", "loci", "nfv", "ec2api"),
@@ -446,7 +446,9 @@ ALIASES = {
     },
     "elastic": {
         "elasticsearch": {
+            "Elasticsearch": "ElasticSearch",
             "Logstash": "LogStash",
+            "MachineLearning": "ML",
         }
     },
     "outscale": {
diff --git a/diagrams/__init__.py b/diagrams/__init__.py
index 45437f82..6e282d99 100644
--- a/diagrams/__init__.py
+++ b/diagrams/__init__.py
@@ -85,6 +85,7 @@ class Diagram:
         outformat: str = "png",
         autolabel: bool = False,
         show: bool = True,
+        strict: bool = False,
         graph_attr: dict = {},
         node_attr: dict = {},
         edge_attr: dict = {},
@@ -102,6 +103,7 @@ class Diagram:
         :param graph_attr: Provide graph_attr dot config attributes.
         :param node_attr: Provide node_attr dot config attributes.
         :param edge_attr: Provide edge_attr dot config attributes.
+        :param strict: Rendering should merge multi-edges.
         """
         self.name = name
         if not name and not filename:
@@ -109,7 +111,7 @@ class Diagram:
         elif not filename:
             filename = "_".join(self.name.split()).lower()
         self.filename = filename
-        self.dot = Digraph(self.name, filename=self.filename)
+        self.dot = Digraph(self.name, filename=self.filename, strict=strict)
 
         # Set attributes.
         for k, v in self._default_graph_attrs.items():
diff --git a/diagrams/c4/__init__.py b/diagrams/c4/__init__.py
index 40577c8c..90ce7a92 100644
--- a/diagrams/c4/__init__.py
+++ b/diagrams/c4/__init__.py
@@ -58,24 +58,50 @@ def C4Node(name, technology="", description="", type="Container", **kwargs):
 
 
 def Container(name, technology="", description="", **kwargs):
-    return C4Node(name, technology=technology, description=description, type="Container")
+    container_attributes = {
+        "name": name,
+        "technology": technology,
+        "description": description,
+        "type": "Container",
+    }
+    container_attributes.update(kwargs)
+    return C4Node(**container_attributes)
 
 
 def Database(name, technology="", description="", **kwargs):
-    return C4Node(name, technology=technology, description=description, type="Database", shape="cylinder", labelloc="b")
+    database_attributes = {
+        "name": name,
+        "technology": technology,
+        "description": description,
+        "type": "Database",
+        "shape": "cylinder",
+        "labelloc": "b",
+    }
+    database_attributes.update(kwargs)
+    return C4Node(**database_attributes)
 
 
 def System(name, description="", external=False, **kwargs):
-    type = "External System" if external else "System"
-    fillcolor = "gray60" if external else "dodgerblue4"
-    return C4Node(name, description=description, type=type, fillcolor=fillcolor)
+    system_attributes = {
+        "name": name,
+        "description": description,
+        "type": "External System" if external else "System",
+        "fillcolor": "gray60" if external else "dodgerblue4",
+    }
+    system_attributes.update(kwargs)
+    return C4Node(**system_attributes)
 
 
 def Person(name, description="", external=False, **kwargs):
-    type = "External Person" if external else "Person"
-    fillcolor = "gray60" if external else "dodgerblue4"
-    style = "rounded,filled"
-    return C4Node(name, description=description, type=type, fillcolor=fillcolor, style=style)
+    person_attributes = {
+        "name": name,
+        "description": description,
+        "type": "External Person" if external else "Person",
+        "fillcolor": "gray60" if external else "dodgerblue4",
+        "style": "rounded,filled",
+    }
+    person_attributes.update(kwargs)
+    return C4Node(**person_attributes)
 
 
 def SystemBoundary(name, **kwargs):
@@ -90,8 +116,10 @@ def SystemBoundary(name, **kwargs):
 
 
 def Relationship(label="", **kwargs):
-    edge_attribtues = {"style": "dashed", "color": "gray60"}
-    if label:
-        edge_attribtues.update({"label": _format_edge_label(label)})
-    edge_attribtues.update(kwargs)
-    return Edge(**edge_attribtues)
+    edge_attributes = {
+        "style": "dashed",
+        "color": "gray60",
+        "label": _format_edge_label(label) if label else "",
+    }
+    edge_attributes.update(kwargs)
+    return Edge(**edge_attributes)
diff --git a/diagrams/elastic/elasticsearch.py b/diagrams/elastic/elasticsearch.py
index eec16b7a..6234eb9c 100644
--- a/diagrams/elastic/elasticsearch.py
+++ b/diagrams/elastic/elasticsearch.py
@@ -56,7 +56,7 @@ class SecuritySettings(_Elasticsearch):
     _icon = "security-settings.png"
 
 
-class Sql(_Elasticsearch):
+class SQL(_Elasticsearch):
     _icon = "sql.png"
 
 
@@ -66,4 +66,6 @@ class Stack(_Elasticsearch):
 
 # Aliases
 
+ElasticSearch = Elasticsearch
 LogStash = Logstash
+ML = MachineLearning
diff --git a/diagrams/onprem/network.py b/diagrams/onprem/network.py
index 0dcee1ca..15d81b24 100644
--- a/diagrams/onprem/network.py
+++ b/diagrams/onprem/network.py
@@ -120,6 +120,10 @@ class Wildfly(_Network):
     _icon = "wildfly.png"
 
 
+class Yarp(_Network):
+    _icon = "yarp.png"
+
+
 class Zookeeper(_Network):
     _icon = "zookeeper.png"
 
diff --git a/diagrams/onprem/registry.py b/diagrams/onprem/registry.py
index 8ee3a401..259df50e 100644
--- a/diagrams/onprem/registry.py
+++ b/diagrams/onprem/registry.py
@@ -12,4 +12,8 @@ class Harbor(_Registry):
     _icon = "harbor.png"
 
 
+class Jfrog(_Registry):
+    _icon = "jfrog.png"
+
+
 # Aliases
diff --git a/diagrams/programming/framework.py b/diagrams/programming/framework.py
index e4ba3b68..46f67750 100644
--- a/diagrams/programming/framework.py
+++ b/diagrams/programming/framework.py
@@ -64,6 +64,10 @@ class Starlette(_Framework):
     _icon = "starlette.png"
 
 
+class Svelte(_Framework):
+    _icon = "svelte.png"
+
+
 class Vue(_Framework):
     _icon = "vue.png"
 
diff --git a/docs/img/advanced_web_service_with_on-premise.png b/docs/img/advanced_web_service_with_on-premise.png
index 83298236..c2edf4d7 100644
Binary files a/docs/img/advanced_web_service_with_on-premise.png and b/docs/img/advanced_web_service_with_on-premise.png differ
diff --git a/docs/img/advanced_web_service_with_on-premise_colored.png b/docs/img/advanced_web_service_with_on-premise_colored.png
index f775cd50..d404d3c2 100644
Binary files a/docs/img/advanced_web_service_with_on-premise_colored.png and b/docs/img/advanced_web_service_with_on-premise_colored.png differ
diff --git a/docs/img/simple_web_service_with_db_cluster_diagram.png b/docs/img/simple_web_service_with_db_cluster_diagram.png
index 96a74505..e92681c7 100644
Binary files a/docs/img/simple_web_service_with_db_cluster_diagram.png and b/docs/img/simple_web_service_with_db_cluster_diagram.png differ
diff --git a/docs/nodes/onprem.md b/docs/nodes/onprem.md
index a8ff6304..7a2707e7 100644
--- a/docs/nodes/onprem.md
+++ b/docs/nodes/onprem.md
@@ -461,6 +461,9 @@ Node classes list of onprem provider.
 <img width="30" src="/diagrams/img/resources/onprem/network/wildfly.png" alt="Wildfly" style="float: left; padding-right: 5px;" >
 **diagrams.onprem.network.Wildfly**
 
+<img width="30" src="/diagrams/img/resources/onprem/network/yarp.png" alt="Yarp" style="float: left; padding-right: 5px;" >
+**diagrams.onprem.network.Yarp**
+
 <img width="30" src="/diagrams/img/resources/onprem/network/zookeeper.png" alt="Zookeeper" style="float: left; padding-right: 5px;" >
 **diagrams.onprem.network.Zookeeper**
 
@@ -500,6 +503,9 @@ Node classes list of onprem provider.
 <img width="30" src="/diagrams/img/resources/onprem/registry/harbor.png" alt="Harbor" style="float: left; padding-right: 5px;" >
 **diagrams.onprem.registry.Harbor**
 
+<img width="30" src="/img/resources/onprem/registry/jfrog.png" alt="Jfrog" style="float: left; padding-right: 5px;" >
+**diagrams.onprem.registry.Jfrog**
+
 ## onprem.search
 
 
diff --git a/poetry.lock b/poetry.lock
index 76254af6..93ed5601 100644
--- a/poetry.lock
+++ b/poetry.lock
@@ -13,14 +13,6 @@ typed-ast = {version = ">=1.4.0,<2.0", markers = "implementation_name == \"cpyth
 typing-extensions = {version = ">=3.10", markers = "python_version < \"3.10\""}
 wrapt = ">=1.11,<1.14"
 
-[[package]]
-name = "atomicwrites"
-version = "1.3.0"
-description = "Atomic file writes."
-category = "dev"
-optional = false
-python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-
 [[package]]
 name = "attrs"
 version = "19.3.0"
@@ -37,9 +29,9 @@ tests = ["coverage", "hypothesis", "pympler", "pytest (>=4.3.0)", "six", "zope.i
 
 [[package]]
 name = "black"
-version = "22.10.0"
+version = "22.12.0"
 description = "The uncompromising code formatter."
-category = "main"
+category = "dev"
 optional = false
 python-versions = ">=3.7"
 
@@ -62,7 +54,7 @@ uvloop = ["uvloop (>=0.15.2)"]
 name = "click"
 version = "8.1.3"
 description = "Composable command line interface toolkit"
-category = "main"
+category = "dev"
 optional = false
 python-versions = ">=3.7"
 
@@ -74,28 +66,39 @@ importlib-metadata = {version = "*", markers = "python_version < \"3.8\""}
 name = "colorama"
 version = "0.4.3"
 description = "Cross-platform colored terminal text."
-category = "main"
+category = "dev"
 optional = false
 python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*, !=3.4.*"
 
+[[package]]
+name = "exceptiongroup"
+version = "1.1.0"
+description = "Backport of PEP 654 (exception groups)"
+category = "dev"
+optional = false
+python-versions = ">=3.7"
+
+[package.extras]
+test = ["pytest (>=6)"]
+
 [[package]]
 name = "graphviz"
-version = "0.19.1"
+version = "0.20.1"
 description = "Simple Python interface for Graphviz"
 category = "main"
 optional = false
-python-versions = ">=3.6"
+python-versions = ">=3.7"
 
 [package.extras]
 dev = ["flake8", "pep8-naming", "tox (>=3)", "twine", "wheel"]
-docs = ["sphinx (>=1.8)", "sphinx-autodoc-typehints", "sphinx-rtd-theme"]
-test = ["coverage", "mock (>=4)", "pytest (>=6)", "pytest-cov", "pytest-mock (>=3)"]
+docs = ["sphinx (>=5)", "sphinx-autodoc-typehints", "sphinx-rtd-theme"]
+test = ["coverage", "mock (>=4)", "pytest (>=7)", "pytest-cov", "pytest-mock (>=3)"]
 
 [[package]]
 name = "importlib-metadata"
 version = "1.5.0"
 description = "Read metadata from Python packages"
-category = "main"
+category = "dev"
 optional = false
 python-versions = "!=3.0.*,!=3.1.*,!=3.2.*,!=3.3.*,!=3.4.*,>=2.7"
 
@@ -130,11 +133,11 @@ xdg-home = ["appdirs (>=1.4.0)"]
 
 [[package]]
 name = "jinja2"
-version = "3.0.1"
+version = "3.1.2"
 description = "A very fast and expressive template engine."
 category = "main"
 optional = false
-python-versions = ">=3.6"
+python-versions = ">=3.7"
 
 [package.dependencies]
 MarkupSafe = ">=2.0"
@@ -170,7 +173,7 @@ python-versions = "*"
 name = "mypy-extensions"
 version = "0.4.3"
 description = "Experimental type system extensions for programs checked with the mypy typechecker."
-category = "main"
+category = "dev"
 optional = false
 python-versions = "*"
 
@@ -189,7 +192,7 @@ pyparsing = ">=2.0.2"
 name = "pathspec"
 version = "0.10.1"
 description = "Utility library for gitignore style pattern matching of file paths."
-category = "main"
+category = "dev"
 optional = false
 python-versions = ">=3.7"
 
@@ -197,7 +200,7 @@ python-versions = ">=3.7"
 name = "platformdirs"
 version = "2.4.0"
 description = "A small Python module for determining appropriate platform-specific dirs, e.g. a \"user data dir\"."
-category = "main"
+category = "dev"
 optional = false
 python-versions = ">=3.6"
 
@@ -219,14 +222,6 @@ importlib-metadata = {version = ">=0.12", markers = "python_version < \"3.8\""}
 [package.extras]
 dev = ["pre-commit", "tox"]
 
-[[package]]
-name = "py"
-version = "1.10.0"
-description = "library with cross-python path, ini-parsing, io, code, log facilities"
-category = "dev"
-optional = false
-python-versions = ">=2.7, !=3.0.*, !=3.1.*, !=3.2.*, !=3.3.*"
-
 [[package]]
 name = "pylint"
 version = "2.12.0"
@@ -254,22 +249,21 @@ python-versions = ">=2.6, !=3.0.*, !=3.1.*, !=3.2.*"
 
 [[package]]
 name = "pytest"
-version = "7.0.1"
+version = "7.2.0"
 description = "pytest: simple powerful testing with Python"
 category = "dev"
 optional = false
-python-versions = ">=3.6"
+python-versions = ">=3.7"
 
 [package.dependencies]
-atomicwrites = {version = ">=1.0", markers = "sys_platform == \"win32\""}
 attrs = ">=19.2.0"
 colorama = {version = "*", markers = "sys_platform == \"win32\""}
+exceptiongroup = {version = ">=1.0.0rc8", markers = "python_version < \"3.11\""}
 importlib-metadata = {version = ">=0.12", markers = "python_version < \"3.8\""}
 iniconfig = "*"
 packaging = "*"
 pluggy = ">=0.12,<2.0"
-py = ">=1.8.2"
-tomli = ">=1.0.0"
+tomli = {version = ">=1.0.0", markers = "python_version < \"3.11\""}
 
 [package.extras]
 testing = ["argcomplete", "hypothesis (>=3.56)", "mock", "nose", "pygments (>=2.7.2)", "requests", "xmlschema"]
@@ -306,7 +300,7 @@ python-versions = "*"
 name = "tomli"
 version = "1.2.3"
 description = "A lil' TOML parser"
-category = "main"
+category = "dev"
 optional = false
 python-versions = ">=3.6"
 
@@ -322,7 +316,7 @@ python-versions = ">=3.6"
 name = "typing-extensions"
 version = "4.1.1"
 description = "Backported and Experimental Type Hints for Python 3.6+"
-category = "main"
+category = "dev"
 optional = false
 python-versions = ">=3.6"
 
@@ -338,7 +332,7 @@ python-versions = "*"
 name = "zipp"
 version = "3.1.0"
 description = "Backport of pathlib-compatible object wrapper for zip files"
-category = "main"
+category = "dev"
 optional = false
 python-versions = ">=3.6"
 
@@ -349,43 +343,30 @@ testing = ["func-timeout", "jaraco.itertools"]
 [metadata]
 lock-version = "1.1"
 python-versions = "^3.7"
-content-hash = "89ec17def343e74e340a9a5261a015804005fc9911ae35d5dacb40c1edb591aa"
+content-hash = "bd314565d6ceadde7dfc215293ff1365ad294a2219d822620beeadac0d1f3736"
 
 [metadata.files]
 astroid = [
     {file = "astroid-2.9.0-py3-none-any.whl", hash = "sha256:776ca0b748b4ad69c00bfe0fff38fa2d21c338e12c84aa9715ee0d473c422778"},
     {file = "astroid-2.9.0.tar.gz", hash = "sha256:5939cf55de24b92bda00345d4d0659d01b3c7dafb5055165c330bc7c568ba273"},
 ]
-atomicwrites = [
-    {file = "atomicwrites-1.3.0-py2.py3-none-any.whl", hash = "sha256:03472c30eb2c5d1ba9227e4c2ca66ab8287fbfbbda3888aa93dc2e28fc6811b4"},
-    {file = "atomicwrites-1.3.0.tar.gz", hash = "sha256:75a9445bac02d8d058d5e1fe689654ba5a6556a1dfd8ce6ec55a0ed79866cfa6"},
-]
 attrs = [
     {file = "attrs-19.3.0-py2.py3-none-any.whl", hash = "sha256:08a96c641c3a74e44eb59afb61a24f2cb9f4d7188748e76ba4bb5edfa3cb7d1c"},
     {file = "attrs-19.3.0.tar.gz", hash = "sha256:f7b7ce16570fe9965acd6d30101a28f62fb4a7f9e926b3bbc9b61f8b04247e72"},
 ]
 black = [
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+    {file = "black-22.12.0-cp310-cp310-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:9eedd20838bd5d75b80c9f5487dbcb06836a43833a37846cf1d8c1cc01cef59d"},
+    {file = "black-22.12.0-cp310-cp310-win_amd64.whl", hash = "sha256:159a46a4947f73387b4d83e87ea006dbb2337eab6c879620a3ba52699b1f4351"},
+    {file = "black-22.12.0-cp311-cp311-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:d30b212bffeb1e252b31dd269dfae69dd17e06d92b87ad26e23890f3efea366f"},
+    {file = "black-22.12.0-cp311-cp311-win_amd64.whl", hash = "sha256:7412e75863aa5c5411886804678b7d083c7c28421210180d67dfd8cf1221e1f4"},
+    {file = "black-22.12.0-cp37-cp37m-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:c116eed0efb9ff870ded8b62fe9f28dd61ef6e9ddd28d83d7d264a38417dcee2"},
+    {file = "black-22.12.0-cp37-cp37m-win_amd64.whl", hash = "sha256:1f58cbe16dfe8c12b7434e50ff889fa479072096d79f0a7f25e4ab8e94cd8350"},
+    {file = "black-22.12.0-cp38-cp38-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:77d86c9f3db9b1bf6761244bc0b3572a546f5fe37917a044e02f3166d5aafa7d"},
+    {file = "black-22.12.0-cp38-cp38-win_amd64.whl", hash = "sha256:82d9fe8fee3401e02e79767016b4907820a7dc28d70d137eb397b92ef3cc5bfc"},
+    {file = "black-22.12.0-cp39-cp39-manylinux_2_17_x86_64.manylinux2014_x86_64.whl", hash = "sha256:101c69b23df9b44247bd88e1d7e90154336ac4992502d4197bdac35dd7ee3320"},
+    {file = "black-22.12.0-cp39-cp39-win_amd64.whl", hash = "sha256:559c7a1ba9a006226f09e4916060982fd27334ae1998e7a38b3f33a37f7a2148"},
+    {file = "black-22.12.0-py3-none-any.whl", hash = "sha256:436cc9167dd28040ad90d3b404aec22cedf24a6e4d7de221bec2730ec0c97bcf"},
+    {file = "black-22.12.0.tar.gz", hash = "sha256:229351e5a18ca30f447bf724d007f890f97e13af070bb6ad4c0a441cd7596a2f"},
 ]
 click = [
     {file = "click-8.1.3-py3-none-any.whl", hash = "sha256:bb4d8133cb15a609f44e8213d9b391b0809795062913b383c62be0ee95b1db48"},
@@ -395,9 +376,13 @@ colorama = [
     {file = "colorama-0.4.3-py2.py3-none-any.whl", hash = "sha256:7d73d2a99753107a36ac6b455ee49046802e59d9d076ef8e47b61499fa29afff"},
     {file = "colorama-0.4.3.tar.gz", hash = "sha256:e96da0d330793e2cb9485e9ddfd918d456036c7149416295932478192f4436a1"},
 ]
+exceptiongroup = [
+    {file = "exceptiongroup-1.1.0-py3-none-any.whl", hash = "sha256:327cbda3da756e2de031a3107b81ab7b3770a602c4d16ca618298c526f4bec1e"},
+    {file = "exceptiongroup-1.1.0.tar.gz", hash = "sha256:bcb67d800a4497e1b404c2dd44fca47d3b7a5e5433dbab67f96c1a685cdfdf23"},
+]
 graphviz = [
-    {file = "graphviz-0.19.1-py3-none-any.whl", hash = "sha256:f34088c08be2ec16279dfa9c3b4ff3d1453c5c67597a33e2819b000e18d4c546"},
-    {file = "graphviz-0.19.1.zip", hash = "sha256:09ed0cde452d015fe77c4845a210eb642f28d245f5bc250d4b97808cb8f49078"},
+    {file = "graphviz-0.20.1-py3-none-any.whl", hash = "sha256:587c58a223b51611c0cf461132da386edd896a029524ca61a1462b880bf97977"},
+    {file = "graphviz-0.20.1.zip", hash = "sha256:8c58f14adaa3b947daf26c19bc1e98c4e0702cdc31cf99153e6f06904d492bf8"},
 ]
 importlib-metadata = [
     {file = "importlib_metadata-1.5.0-py2.py3-none-any.whl", hash = "sha256:b97607a1a18a5100839aec1dc26a1ea17ee0d93b20b0f008d80a5a050afb200b"},
@@ -412,8 +397,8 @@ isort = [
     {file = "isort-4.3.21.tar.gz", hash = "sha256:54da7e92468955c4fceacd0c86bd0ec997b0e1ee80d97f67c35a78b719dccab1"},
 ]
 jinja2 = [
-    {file = "Jinja2-3.0.1-py3-none-any.whl", hash = "sha256:1f06f2da51e7b56b8f238affdd6b4e2c61e39598a378cc49345bc1bd42a978a4"},
-    {file = "Jinja2-3.0.1.tar.gz", hash = "sha256:703f484b47a6af502e743c9122595cc812b0271f661722403114f71a79d0f5a4"},
+    {file = "Jinja2-3.1.2-py3-none-any.whl", hash = "sha256:6088930bfe239f0e6710546ab9c19c9ef35e29792895fed6e6e31a023a182a61"},
+    {file = "Jinja2-3.1.2.tar.gz", hash = "sha256:31351a702a408a9e7595a8fc6150fc3f43bb6bf7e319770cbc0db9df9437e852"},
 ]
 lazy-object-proxy = [
     {file = "lazy-object-proxy-1.4.3.tar.gz", hash = "sha256:f3900e8a5de27447acbf900b4750b0ddfd7ec1ea7fbaf11dfa911141bc522af0"},
@@ -533,10 +518,6 @@ pluggy = [
     {file = "pluggy-0.13.1-py2.py3-none-any.whl", hash = "sha256:966c145cd83c96502c3c3868f50408687b38434af77734af1e9ca461a4081d2d"},
     {file = "pluggy-0.13.1.tar.gz", hash = "sha256:15b2acde666561e1298d71b523007ed7364de07029219b604cf808bfa1c765b0"},
 ]
-py = [
-    {file = "py-1.10.0-py2.py3-none-any.whl", hash = "sha256:3b80836aa6d1feeaa108e046da6423ab8f6ceda6468545ae8d02d9d58d18818a"},
-    {file = "py-1.10.0.tar.gz", hash = "sha256:21b81bda15b66ef5e1a777a21c4dcd9c20ad3efd0b3f817e7a809035269e1bd3"},
-]
 pylint = [
     {file = "pylint-2.12.0-py3-none-any.whl", hash = "sha256:ba00afcb1550bc217bbcb0eb76c10cb8335f7417a3323bdd980c29fb5b59f8d2"},
     {file = "pylint-2.12.0.tar.gz", hash = "sha256:245c87e5da54c35b623c21b35debf87d93b18bf9e0229515cc172d0b83d627cd"},
@@ -546,8 +527,8 @@ pyparsing = [
     {file = "pyparsing-2.4.7.tar.gz", hash = "sha256:c203ec8783bf771a155b207279b9bccb8dea02d8f0c9e5f8ead507bc3246ecc1"},
 ]
 pytest = [
-    {file = "pytest-7.0.1-py3-none-any.whl", hash = "sha256:9ce3ff477af913ecf6321fe337b93a2c0dcf2a0a1439c43f5452112c1e4280db"},
-    {file = "pytest-7.0.1.tar.gz", hash = "sha256:e30905a0c131d3d94b89624a1cc5afec3e0ba2fbdb151867d8e0ebd49850f171"},
+    {file = "pytest-7.2.0-py3-none-any.whl", hash = "sha256:892f933d339f068883b6fd5a459f03d85bfcb355e4981e146d2c7616c21fef71"},
+    {file = "pytest-7.2.0.tar.gz", hash = "sha256:c4014eb40e10f11f355ad4e3c2fb2c6c6d1919c73f3b5a433de4708202cade59"},
 ]
 rope = [
     {file = "rope-0.14.0-py2-none-any.whl", hash = "sha256:6b728fdc3e98a83446c27a91fc5d56808a004f8beab7a31ab1d7224cecc7d969"},
diff --git a/pyproject.toml b/pyproject.toml
index 28c0e29f..4862fc13 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "diagrams"
-version = "0.23.1"
+version = "0.23.2"
 description = "Diagram as Code"
 license = "MIT"
 authors = ["mingrammer <mingrammer@gmail.com>"]
@@ -11,17 +11,17 @@ include = ["resources/**/*"]
 
 [tool.poetry.dependencies]
 python = "^3.7"
-graphviz = ">=0.13.2,<0.20.0"
+graphviz = ">=0.13.2,<0.21.0"
 jinja2 = ">=2.10,<4.0"
 contextvars = { version = "^2.4", python = "~3.6" }
 typed-ast = "^1.5.4"
 
 [tool.poetry.dev-dependencies]
-pytest = "^7.0"
+pytest = "^7.2"
 pylint = "^2.7"
 rope = "^0.14.0"
 isort = "^4.3"
-black = "^22.10.0"
+black = "^22.12.0"
 
 [tool.black]
 line-length = 120
diff --git a/resources/onprem/network/yarp.png b/resources/onprem/network/yarp.png
new file mode 100644
index 00000000..4078dd5c
Binary files /dev/null and b/resources/onprem/network/yarp.png differ
diff --git a/resources/onprem/registry/jfrog.png b/resources/onprem/registry/jfrog.png
new file mode 100644
index 00000000..931bfd81
Binary files /dev/null and b/resources/onprem/registry/jfrog.png differ
diff --git a/resources/programming/framework/flask.png b/resources/programming/framework/flask.png
index 98fe1fdb..18c396a6 100644
Binary files a/resources/programming/framework/flask.png and b/resources/programming/framework/flask.png differ
diff --git a/resources/programming/framework/svelte.png b/resources/programming/framework/svelte.png
new file mode 100644
index 00000000..463cc473
Binary files /dev/null and b/resources/programming/framework/svelte.png differ
diff --git a/tests/test_c4.py b/tests/test_c4.py
index 25c85455..3877ec0f 100644
--- a/tests/test_c4.py
+++ b/tests/test_c4.py
@@ -10,7 +10,7 @@ from diagrams.c4 import Person, Container, Database, System, SystemBoundary, Rel
 
 class C4Test(unittest.TestCase):
     def setUp(self):
-        self.name = "diagram-" + "".join([random.choice(string.hexdigits) for n in range(7)])
+        self.name = "diagram-" + "".join([random.choice(string.hexdigits) for n in range(7)]).lower()
 
     def tearDown(self):
         setdiagram(None)
diff --git a/website/static/img/resources/elastic/agent/agent.png b/website/static/img/resources/elastic/agent/agent.png
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