Help data importing

I have a page where there are tick boxes, when a task has completed they tick the box for yes or if it hasn’t been done then they click the tick box for no. on the home page I want it to be so when the tick box is clicked for yes then a shape shows green. I have tried to use conditions to change this but I can’t use elements from another page.

any help is appreciated

The easiest way is to have the checkbox modify a value in a database. Then, on the second page, that element turns green only when the database value has been modified.