diff --git a/circle.yml b/circle.yml
index 3d6535ec..aa25460b 100644
--- a/circle.yml
+++ b/circle.yml
@@ -56,7 +56,7 @@ libratbag_references:
 fedora_install: &fedora_install
   run:
     name: Install prerequisites
-    command: dnf install -y tree git gcc gcc-c++ meson check-devel libudev-devel libevdev-devel doxygen graphviz valgrind python3-gobject python3-evdev glib2-devel
+    command: dnf install -y tree git gcc gcc-c++ meson check-devel libudev-devel libevdev-devel doxygen graphviz valgrind python3-gobject python3-evdev glib2-devel python3-lxml
 
 
 fedora_settings: &fedora_settings
@@ -81,7 +81,7 @@ ubuntu_settings: &ubuntu_settings
           apt-get install -y software-properties-common
           add-apt-repository universe
           apt-get update
-          apt-get install -y tree git gcc g++ pkg-config meson check libudev-dev libevdev-dev libsystemd-dev doxygen graphviz valgrind python3-gi python3-evdev libglib2.0-dev:
+          apt-get install -y tree git gcc g++ pkg-config meson check libudev-dev libevdev-dev libsystemd-dev doxygen graphviz valgrind python3-gi python3-evdev libglib2.0-dev python3-lxml
     - checkout
     - *start_dbus
     - *build_and_test
diff --git a/data/gnome/check-svg.py b/data/gnome/check-svg.py
new file mode 100755
index 00000000..2da3812e
--- /dev/null
+++ b/data/gnome/check-svg.py
@@ -0,0 +1,118 @@
+#!/usr/bin/python3
+# vim: set expandtab shiftwidth=4 tabstop=4:
+
+import sys
+from lxml import etree
+import logging
+
+ns = {'svg': 'http://www.w3.org/2000/svg'}
+style_query = '//svg:rect[@id=\"{}\"][contains(@style, \"{}\")]'
+
+logger = None
+
+class SVGLogger(logging.Logger):
+    def __init__(self, name, level=logging.NOTSET):
+        self.success = True
+        return super().__init__(name, level)
+
+    def error(self, msg, *args, **kwargs):
+        self.success = False
+        return super().error(msg, *args, **kwargs)
+
+    @classmethod
+    def get_logger(cls, path):
+        logging.setLoggerClass(SVGLogger)
+        logging.basicConfig(level=logging.DEBUG)
+        return logging.getLogger(path)
+
+
+def check_size(root):
+    width = float(root.attrib['width'])
+    height = float(root.attrib['height'])
+    if not 400 < width < 500:
+        logger.error("Width is outside of range: {}".format(width))
+    if not 400 < height < 500:
+        logger.error("Height is outside of range: {}".format(height))
+
+
+def check_layers(root):
+    """
+    Check there are layers (well, groups) for the components we require.
+    """
+    layer_ids = [g.attrib['id'] for g in root.iterfind('svg:g', ns)]
+
+    for layer in ["Device", "Buttons", "LEDs"]:
+        if layer not in layer_ids:
+            logger.error("Missing layer: {}".format(layer))
+
+
+def check_elements(root, prefix, required=0):
+    """
+    Checks for elements of the form 'prefixN' in the root tag. Any elements
+    found must be consecutive or an error is printed, i.e. if there's a
+    'button8' there has to be a 'button7'.
+
+    If required is nonzero, an error is logged for any missing element with
+    an index less than required.
+    """
+
+    # elements can be paths and rects
+    # This includes leaders and lines
+    element_ids = [p.attrib['id'] for p in root.xpath('//svg:path', namespaces=ns) if p.attrib['id'].startswith(prefix)]
+    element_ids += [p.attrib['id'] for p in root.xpath('//svg:rect', namespaces=ns) if p.attrib['id'].startswith(prefix)]
+    element_ids += [g.attrib['id'] for g in root.xpath('//svg:g', namespaces=ns) if g.attrib['id'].startswith(prefix)]
+
+    idx = 0
+    highest = -1
+    for idx in range(0, 20):
+        e = '{}{}'.format(prefix, idx)
+        if e in element_ids:
+            highest = idx
+            previous = '{}{}'.format(prefix, idx - 1)
+            if idx > 0 and previous not in element_ids:
+                logger.error("Non-consecutive {}: {}".format(prefix, e))
+
+            leader = '{}{}-leader'.format(prefix, idx)
+            if leader not in element_ids:
+                logger.error("Missing {} for {}".format(leader, e))
+            else:
+                element = root.xpath(style_query.format(leader, 'text-align'), namespaces=ns)
+                if element is None or len(element) != 1 or element[0] is None:
+                    logger.error("Missing style property for {}".format(leader))
+
+            path = '{}{}-path'.format(prefix, idx)
+            if path not in element_ids:
+                logger.error("Missing {} for {}".format(path, e))
+        elif idx < required:
+            logger.error("Missing {}: {}".format(prefix, e))
+
+    logger.info("Found {} {}s".format(highest + 1, prefix))
+
+
+def check_leds(root):
+    check_elements(root, "led")
+
+
+def check_buttons(root):
+    check_elements(root, "button", 3)
+
+
+def check_svg(path):
+    svg = etree.parse(path)
+    root = svg.getroot()
+
+    check_size(root)
+    check_layers(root)
+    check_buttons(root)
+    check_leds(root)
+
+if __name__ == "__main__":
+    success = True
+    for path in sys.argv[1:]:
+        logger = SVGLogger.get_logger(path)
+        check_svg(path)
+        if not logger.success:
+            success = False
+
+    if not success:
+        sys.exit(1)
diff --git a/meson.build b/meson.build
index 4475a00f..ef19914d 100644
--- a/meson.build
+++ b/meson.build
@@ -306,7 +306,7 @@ default_svg_files = [
 install_data(default_svg_files,
 	     install_dir : join_paths(get_option('datadir'), 'libratbag', 'default'))
 
-gnome_svg_files = [
+gnome_svg_files = files(
 	'data/gnome/fallback.svg',
 	'data/gnome/logitech-g303.svg',
 	'data/gnome/logitech-g403.svg',
@@ -316,10 +316,13 @@ gnome_svg_files = [
 	'data/gnome/logitech-g700.svg',
 	'data/gnome/logitech-g900.svg',
 	'data/gnome/roccat-kone-xtd.svg',
-]
+)
 install_data(gnome_svg_files,
 	     install_dir : join_paths(get_option('datadir'), 'libratbag', 'gnome'))
 
+test_svg_files = find_program('data/gnome/check-svg.py')
+test('check-svg', test_svg_files, args : gnome_svg_files)
+
 #### tests ####
 enable_tests = get_option('enable-tests')
 if enable_tests