+1 for the idea
The main issue for me is that its style is not consistent with any other button in the UI.
Especially important for accessibility 
Fortunately this shouldnât be too difficult to do from a technical perspective: here is an example of changing an attribute on all âuser avatarâ pictures.
Like button change :
Why leave the text in black? I think making the text the same shade of blue as the icon would give more cohesion to the button.
About the tooltips, I worked on them for XWIKI-19139: Like button can't be focused by tabulator (#2107) ¡ xwiki/xwiki-platform@e0b58cb ¡ GitHub, itâs pretty new and they are not the best I agree ^^â
For a button, its accessible name should always contain a description of its function (here, like or unlike the page). In this case, we also want to give an idea of what the number next to the button means. Both pieces of info are important, even though you donât need to put the second one in the tooltip.
- We have a few default tags that the user can choose from, like:
- #done - this tag would help put all done projects and tasks in the same subcategory. These would be the pages that would be most likely to get archived or deleted each few years, making the process of cleaning up much easier.
- #in progress
- #to improve
- #to update - if anyone stumbles an outdated page, they can easily mark it for update
- Because these tags are very close to the Comments section it makes feedback and progress tracking much easier for the reviewer.
- Each of these default tags should have special colors to be easy to spot. The colors would be based on the info, warning, success and error boxesâ colors.
Those colors schemes have enough contrast (I made sure of it earlier this year 
) and donât bring in too much complexity in the color theme, for a secondary feature.