diff --git a/config.json b/config.json
index d54607e949..d4fd3edc97 100644
--- a/config.json
+++ b/config.json
@@ -2,7 +2,7 @@
     "brand": "HealthChat",
     "branding": {
         "auth_footer_links": null,
-        "auth_header_logo_url": "https://healthchat.ch/assets/logo.png",
+        "auth_header_logo_url": "themes/element/img/logos/element-logo.png",
         "welcome_background_url": null
     },
     "bug_report_endpoint_url": "https://element.io/bugreports/submit",
@@ -16,7 +16,7 @@
             "base_url": ""
         }
     },
-    "default_theme": "light",
+    "default_theme": "custom-HealthChat Light",
     "disable_custom_urls": true,
     "disable_guests": true,
     "element_call": {},
@@ -57,47 +57,45 @@
         "custom_themes": [
             "HealthChat Light",
             {
-                "colors": {
-                    "accent-color": "#7287fd",
-                    "alert": "#df8e1d",
-                    "avatar-background-colors": [
-                        "#1e66f5",
-                        "#8839ef",
-                        "#40a02b"
-                    ],
-                    "focus-bg-color": "#acb0be",
-                    "menu-selected-color": "#bcc0cc",
-                    "other-user-pill-bg-color": "#04a5e5",
-                    "primary-color": "#7287fd",
-                    "reaction-row-button-selected-bg-color": "#bcc0cc",
-                    "room-highlight-color": "#04a5e5",
-                    "roomlist-background-color": "#e6e9ef",
-                    "roomlist-highlights-color": "#bcc0cc",
-                    "roomlist-separator-color": "#8c8fa1",
-                    "roomlist-text-color": "#4c4f69",
-                    "roomlist-text-secondary-color": "#4c4f69",
-                    "secondary-content": "#4c4f69",
-                    "sidebar-color": "#dce0e8",
-                    "tertiary-content": "#4c4f69",
-                    "timeline-background-color": "#eff1f5",
-                    "timeline-highlights-color": "#bcc0cc",
-                    "timeline-text-color": "#4c4f69",
-                    "timeline-text-secondary-color": "#6c6f85",
-                    "togglesw-off-color": "#7c7f93",
-                    "username-colors": [
-                        "#8839ef",
-                        "#e64553",
-                        "#fe640b",
-                        "#40a02b",
-                        "#179299",
-                        "#04a5e5",
-                        "#209fb5",
-                        "#7287fd"
-                    ],
-                    "warning-color": "#d20f39"
-                },
+                "name": "HealthChat Light",
                 "is_dark": false,
-                "name": "HealthChat Light"
+                "colors": {
+                    "accent-color": "#1f4d85",
+                    "primary-color": "#1f4d85",
+                    "alert": "#df8e1d",
+                    "warning-color": "#d20f39",
+                    "sidebar-color": "#12325c",
+                    "roomlist-background-color": "#f5f5f5",
+                    "roomlist-highlights-color": "#d9d9d9",
+                    "roomlist-separator-color": "#9b9898",
+                    "roomlist-text-color": "#473e3e",
+                    "roomlist-text-secondary-color": "#9b9898",
+                    "timeline-background-color": "#ffffff",
+                    "timeline-highlights-color": "#d9d9d9",
+                    "timeline-text-color": "#473e3e",
+                    "timeline-text-secondary-color": "#9b9898",
+                    "secondary-content": "#9b9898",
+                    "tertiary-content": "#9b9898",
+                    "focus-bg-color": "#d9d9d9",
+                    "menu-selected-color": "#d9d9d9",
+                    "other-user-pill-bg-color": "#376A91",
+                    "room-highlight-color": "#376A91",
+                    "reaction-row-button-selected-bg-color": "#d9d9d9",
+                    "togglesw-off-color": "#9b9898",
+                    "avatar-background-colors": ["#12325c", "#1f4d85", "#376A91"],
+                    "username-colors": ["#12325c", "#2a4063", "#1f4d85", "#376A91", "#473e3e", "#1f4d85", "#2a4063", "#12325c"]
+                },
+                "fonts": {
+                    "general": "\"Century Gothic\", \"Futura\", \"Trebuchet MS\", \"Arial\", sans-serif"
+                },
+                "compound": {
+                    "--cpd-color-text-action-accent": "#1f4d85",
+                    "--cpd-color-bg-action-primary-rest": "#1f4d85",
+                    "--cpd-color-bg-action-primary-hovered": "#2a4063",
+                    "--cpd-color-bg-action-primary-pressed": "#12325c",
+                    "--cpd-color-text-link-external": "#1f4d85",
+                    "--cpd-color-icon-accent-tertiary": "#376A91"
+                }
             }
         ]
     },