diff --git a/client/src/themes/Default.ts b/client/src/themes/Default.ts
index 3ba20ab..c0f5884 100644
--- a/client/src/themes/Default.ts
+++ b/client/src/themes/Default.ts
@@ -15,7 +15,23 @@
  * License along with this program.  If not, see
  * <https://www.gnu.org/licenses/>.
  */
-import { createTheme } from '@mui/material';
+import { createTheme, SimplePaletteColorOptions } from '@mui/material';
+
+declare module '@mui/material/styles' {
+  interface Theme {
+    InfoTooltip: {
+      backgroundColor: SimplePaletteColorOptions;
+      color: SimplePaletteColorOptions;
+    };
+  }
+
+  interface ThemeOptions {
+    InfoTooltip: {
+      backgroundColor: SimplePaletteColorOptions;
+      color: SimplePaletteColorOptions;
+    };
+  }
+}
 
 const theme = createTheme({
   palette: {
@@ -31,6 +47,14 @@
       main: '#009980',
     },
   },
+  InfoTooltip: {
+    backgroundColor: {
+      main: '#FFFFFF',
+    },
+    color: {
+      main: '#292929',
+    },
+  },
   typography: {
     fontFamily: 'Ubuntu',
     allVariants: {