quizquack welcome to Flarum!
quizquack Is there a way to have images in the different coloured tiles when looking at the 'tags' view?
The easiest way to achieve that would be using some custom CSS. I'm certain there's at least one discussion about this on this forum, but unfortunately I cannot find it. You could use the nth-selectector (like .TagTile:nth-child(1) {} or use the color of the tag to select it (like .TagTile[style="background-color: rgb(181, 158, 140);"] {})
quizquack Is there an extension that gives a 'WYSIWYG' view when writing posts? i.e. you see bold, italic etc 'as is' rather than with the asterisks?
There used to be an extension, but it no longer works. It was also unfortunately incompatible with many of the other community extensions because it didn't re-use Flarum formatting logic.
quizquack I have enabled FoF Upload but uploading an image doesn't appear to work? No uploaded file is in the specified directory and it just shows the src text in the post itself.
Try clearing your cache with the button in the admin panel or the php flarum cache:clear command and try again. If it still doesn't work, can you post directly in the extension discussion?
