After a few usability tests, we saw that people do drag, but have minor problems with discovering clickability of the slider lines. Thus we suggest the following changes:
- The slider lines’ opacity on hover should be changed to 0.8 (from 0.7)
- The slider lines’ width should be changed from 3px to 4px
- The extended interactive area around the slider lines (triggering hover feedback and allowing to click on the lines even if you did not exactly hit them) should be slightly larger by about 10px (I was not able to test this by myself in the file. Premise is that it should look still plausible and not like "I am totally somewhere else, but it still reacts")
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