element: add config.json for Arc Dark theme

Signed-off-by: Joe Groocock <me@frebib.net>

.config/Element/.gitignore

@@ -0,0 +1,3 @@
+*
+!.gitignore
+!config.json

.config/Element/config.json

@@ -0,0 +1,88 @@
+{
+    "default_server_config": {
+        "m.homeserver": {
+            "base_url": "https://chat.nerdhouse.io/",
+            "server_name": "chat.nerdhouse.io"
+        },
+        "m.identity_server": {
+            "base_url": "https://chat.nerdhouse.io/"
+        }
+    },
+    "disable_custom_urls": false,
+    "disable_guests": false,
+    "disable_login_language_selector": false,
+    "disable_3pid_login": false,
+    "brand": "NerdChat",
+    "integrations_ui_url": "https://scalar.vector.im/",
+    "integrations_rest_url": "https://scalar.vector.im/api",
+    "integrations_widgets_urls": [
+        "https://scalar.vector.im/_matrix/integrations/v1",
+        "https://scalar.vector.im/api",
+        "https://scalar-staging.vector.im/_matrix/integrations/v1",
+        "https://scalar-staging.vector.im/api",
+        "https://scalar-staging.riot.im/scalar/api"
+    ],
+    "bug_report_endpoint_url": "https://riot.im/bugreports/submit",
+    "defaultCountryCode": "GB",
+    "showLabsSettings": false,
+    "features": {
+        "feature_font_scaling": "labs",
+        "feature_pinning": "labs",
+        "feature_custom_status": "labs",
+        "feature_custom_tags": "labs",
+        "feature_state_counters": "labs",
+        "feature_irc_ui": "labs"
+    },
+    "default_federate": true,
+    "default_theme": "dark",
+    "roomDirectory": {
+        "servers": [
+            "matrix.org"
+        ]
+    },
+    "welcomeUserId": "@riot-bot:matrix.org",
+    "piwik": {
+        "url": "https://piwik.riot.im/",
+        "whitelistedHSUrls": ["https://matrix.org"],
+        "whitelistedISUrls": ["https://vector.im", "https://matrix.org"],
+        "siteId": 1
+    },
+    "enable_presence_by_hs_url": {
+        "https://matrix.org": false,
+        "https://matrix-client.matrix.org": false
+    },
+    "settingDefaults": {
+        "breadcrumbs": true,
+        "custom_themes": [
+            {
+                "name": "Arc Dark",
+                "is_dark": true,
+                "fonts": {
+                    "general": "sans",
+                    "monospace": "monospace"
+                },
+                "colors": {
+                    "accent-color": "#5294e2",
+                    "primary-color": "#d3dae3",
+                    "warning-color": "#bf616a",
+
+                    "sidebar-color": "#313742",
+                    "roomlist-background-color": "#383c4a",
+                    "roomlist-text-color": "#afb8c5",
+                    "roomlist-text-secondary-color": "#7c818c",
+                    "roomlist-highlights-color": "#404552",
+                    "roomlist-separator-color": "#2F343F",
+
+                    "timeline-background-color": "#404552",
+                    "timeline-text-color": "#afb8c5",
+                    "timeline-text-secondary-color": "#7c818c",
+                    "timeline-highlights-color": "#404552",
+                    "reaction-row-button-selected-bg-color": "#bf616a"
+                }
+            }
+        ]
+    },
+    "jitsi": {
+        "preferredDomain": "jitsi.riot.im"
+    }
+}