Chris,
thanks a lot for your remarks!
ChrisCN wrote:If you are in 'Display only related tags' mode and you exclude tags from the filter (ALT+click) then this tags disappear. I am not sure if it wouldn't be better to always show the tags that are used for a filter.
This is indeed inconvenient. I reckon you are right, if we always show the filter tags (both included and excluded), we can actually get rid of two problems at once: this one and the one with "no matching tags found". And it's actually easier to implement, which is a nice bonus for me

)
ChrisCN wrote:A general solution would be to keep the filter as it is if you right click on a tag that is already used for the filter.
This is actually a bug. Right-clicking on an excluded tag shouldn't make it included. I'll fix it, thanks!
ChrisCN wrote: A simple suggestion would be to add a hotkey to switch modes
I actually plan to add double-clicking on a tag relevance marker (the blue bar on the very left) as another shortcut for switching this mode. Also I want to stop resetting this mode when "All" is clicked. Hopefully these will be welcome improvements
