IMPORTANT: DO NOT drag directly into your tracks folder. It will create ghost folders as a result of my tracks directory being different to yours. Instead, painstakingly add one by one while meditating on how fun life can be!
I want to share with you my unified layout previews for the 146 tracks I currently possess.
I included a PSD template with easy-to-use layers, so you can create the missing one and have fun while being bored, which is what I basically do.
I've also included the backup file for every layout in case you change your mind.
EDIT: haven't included Sim traxx ones, as I didn't find preview layouts for most tracks.
EDIT 2: for the PSD template, I used the country flags from https://www.iconfinder.com/iconsets/world-flag-icons and reduced them by 36%