Merge branch 'GREG-272-change-main-color-ntnu-theme' into 'master'

Change ntnu color palette and header accordingly

See merge request !333

frontend/src/routes/components/header.tsx

@@ -13,6 +13,7 @@ import { getHeaderLogo } from './logos'
 const StyledHeader = styled('header')(({ theme }) => ({
   color: theme.greg.textWhite,
   backgroundColor: theme.palette.primary.main,
+  ...(appInst === 'ntnu' && { backgroundColor: theme.palette.primary.light}),
 
   a: {
     textDecoration: 'none',

frontend/src/themes/ntnu.ts

@@ -12,8 +12,8 @@ const ntnuTheme: ThemeOptions = {
   },
   palette: {
     primary: {
-      main: '#ffffff',
-      light: '#6096d0',
+      main: '#00509e',
+      light: '#ffffff',
     },
     secondary: {
       main: '#00509e',