[ownedbycats]

I updated this column icon template:

program: 
   f = $formats;
   strcat
   (
		if "epub" inlist f then 'epub.png:' fi,
		if "pdf" inlist f then 'pdf.png:' fi,	
		if "azw3" inlist f then 'azw3.png:' fi,
		if "mobi" inlist f then 'mobi.png:' fi,
		if "cbz" inlist f then 'cbz.png:' fi,	
		if "txt" inlist f then 'txt.png:' fi,	
		if "paperbook" inlist f then 'paperbook.png:' fi,
		if "overdrive" inlist f then 'overdrive.png:' fi,	
		if list_difference(field('formats'), 'epub, pdf, azw3, mobi, cbz, paperbook, overdrive, txt', ', ') then 'unknown.png' fi	
   )

C:\Program Files\Calibre2\app\resources\images\mimetypes\txt. png is there, but it's not displaying. I don't think it's a template problem.