[FEATURE REQUEST][BUG] Slider doesn't work with a non-integer step value

Ah, you mean the arrows - sorry, thought you meant in general that the slider doesn't work.

Never noticed that - always use the slider order the mouse dragging over the arrows.

I'll have a look at the view - not too sure where to start haha.

Oddly enough - this works for me (I know I'm creating the sector at the same time):

        editor.StyleManager.addSector('General',{
            name: 'Extras',
            open: false,
            properties: [{
                property: 'opacity',
                type: 'slider',
                defaults: 1,
                step: 0.01,
                max: 1,
                min: 0
            }]
        }, { at: 9 });

Can you make a demo?

Yes of course. I've created a sample with your snippet, but seems that it doesn't want to work with me.

https://codepen.io/sjul66/pen/VwvMwNY

Thanks!