Hello Sybille

Oh I see, so you are taking about slider and other sections of the homepage

Please follow the theme instruction for managing homepage sections
https://themepalace.com/instructions/themes/kids-education-pro/

Regards,
Psink

Hello Tena

Please This CSS in Additional CSS to remove the date and author name form the blog section on the homepage

#latest-posts article .entry-meta{
     display: none;
}

And this CSS in Additional CSS to remove the previous and the next post from a single post

.single .post-navigation{
     display: none;
}

Have a great day

Regards,
Psink

Hello Keistjan

For Query no. 1 & 3 – Add this CSS in the Additional CSS

@media screen and (min-width: 1024px){
    .main-navigation form.search-form {
        min-width: 400px;
       
    }
    .main-navigation form.search-form input{
        border-radius: 10px;
   }
   #header-banner-image .overlay{
        opacity: 0;
   }

}

Adjust border radius and width as per your need – just change value in above CSS

For query no. 2 – Add this CSS in the Additional Css

#featured-slider .entry-meta .byline, 
#featured-slider .entry-meta .posted-on,
.archive-blog-wrapper .entry-meta .byline,
.archive-blog-wrapper .entry-meta .posted-on{
   display: none;
}

For query no. 4, 5 – it is not possible to do that in the theme

Have a great Day

Regards
Psink

Hello raheel

Please add this CSS in the theme

.search-results #sidebar-primary,
.search-results #sidebar-secondary{
	display: none;
}

.search-results #primary,
.search-results .three-columns-enabled #primary {
	width: 100%;
}

To add this CSS please go to Admin Panel >> Appearance >> Customize >> Additional CSS, there paste the above CSS code then publish and refresh

Hope this helps

have a great day

Regards,
Psink

Hello Emmanue

Add this CSS in the theme

.main-navigation ul li a {
    font-size: 14px;
    padding: 10px 20px;
}

To add the above CSS, please go to Admin Panel >> Appearance >> Customize >> Additional CSS,
there paste above CSS then publish and refresh

Regards,
Psink

hello fuerholz

Can you please share your site URL?

Regards,
Psink

Hello Tena

we have released the new update, please update the theme

Regards,
Psink

Hello Soren

Currently, there are no such features to change text color in the theme

For now, Please Add this CSS in Additional CSS

p {
    color: #111010;
}

Hope this helps

Regards,
Psink