Hello Metallio

Sorry for keeping you waiting.

Here is the solution, In order to change the css of block editor you need to code css in the child-editor-blocks.css

Here is the few code – add this code at the end

.editor-styles-wrapper.edit-post-visual-editor {
	background-color: #000;
	color: #999999;
}
.editor-styles-wrapper, .editor-styles-wrapper input, .editor-styles-wrapper select, .editor-styles-wrapper textarea, .editor-styles-wrapper input[type="date"], .editor-styles-wrapper input[type="time"], .editor-styles-wrapper input[type="datetime-local"], .editor-styles-wrapper input[type="week"], .editor-styles-wrapper input[type="month"], .editor-styles-wrapper input[type="text"], .editor-styles-wrapper input[type="email"], .editor-styles-wrapper input[type="url"], .editor-styles-wrapper input[type="password"], .editor-styles-wrapper input[type="search"], .editor-styles-wrapper input[type="tel"], .editor-styles-wrapper input[type="number"], .editor-styles-wrapper .editor-styles-wrapper .mce-content-body a:not(.more-link):not(.button):not(button):hover, .editor-styles-wrapper .editor-styles-wrapper .mce-content-body a:not(.more-link):not(.button):not(button):focus, .editor-styles-wrapper .editor-styles-wrapper .mce-content-body a:not(.more-link):not(.button):not(button):hover, .editor-styles-wrapper .editor-styles-wrapper .mce-content-body a:not(.more-link):not(.button):not(button):focus, .editor-styles-wrapper a:not(.more-link):not(.button):not(button):hover, .editor-styles-wrapper a:not(.more-link):not(.button):not(button):focus, .editor-styles-wrapper textarea, .editor-styles-wrapper .wp-playlist-light .wp-playlist {
    color: #fbf4f4 !important;
}

.editor-styles-wrapper textarea.editor-post-title__input, .editor-styles-wrapper h1, .editor-styles-wrapper h2, .editor-styles-wrapper h3, .editor-styles-wrapper h4, .editor-styles-wrapper h5, .editor-styles-wrapper h6 {
    color: #000 !important;
}

If you don’t where the child-editor-blocks.css file is then follow the screen record
https://www.awesomescreenshot.com/video/3222469?key=5c071d6abc940f7cf9ddcf102de3d41f

Have a great day

Regards,
psink

Hello Henno

I somehow manage to find the issue with the slider. Firstly you have not attached featured images for the posts used in the slider and second, while the Yoast SEO plugin is active it’s not allowing to attached featured image to the posts. So first deactivate that plugin and attached the featured image to the post after you complete to attach image then activate the plugin.

Here is the screen record for how to attached featured image
https://www.awesomescreenshot.com/video/3219047?key=07e1591af24bbbf2b3e1ad78749ae3d7

Regards,
psink

Hello Henno Jacques,

We are not getting how the slider images not displaying. Is it possible to share your backend dashboard login it would be helpful to verify the issue?

Please share your dashboard login details through our contact form
https://themepalace.com/contact-us

Regards,
Psink

Can you please contact this issuse directly throught our contact fourm

https://themepalace.com/contact-us

Regards,
Psink

Please deactive all plugins once and check if same error arise. sometimes third party plugins may Cause such issue

Regards,
Psink

Did you set the Frontpage template? If you have no idea on frontpage template

Please watch this screen record
https://www.awesomescreenshot.com/video/3190456?key=4221581f047d7e57f20615a13e7c8479

Regards,
psink

Add this css

#colophon .footer-widgets-area .widget > ul > li{
	font-size: 16px;
}

Regards,
Psink