power@cinnamon.org applet keyboard backlight brightness slider value setting logic is wrong

 * Cinnamon version (cinnamon --version) - 5.4.12
   - Please specify if you are using the daily builds PPA - I'm not
     (https://launchpad.net/~linuxmint-daily-build-team/+archive/ubuntu/daily-builds).
 * Distribution - Mint 21
 * Graphics hardware *and* driver used - AMD ATI 04:00.0 Renoir (integrated GPU of Ryzen 5 4500U), amdgpu driver
 * 32 or 64 bit - 64-bit

xsession-errors.log

Issue

On Zenbook 14 UM425I which has a 4-stage (off + 3 levels of brightness) keyboard backlight I noticed the backlight brightness slider provided by the power@cinnamon.org GUI applet simply sets the brightness to 0% on the first two values which doesn't make a lot of sense.

Steps to reproduce

Try to set keyboard backlight to 33% by moving the slider to the second step
The first two slider steps act the exact same, effectively capping my maximum keyboard backlight control via the applet GUI at 66%

Expected behaviour

Moving to first step gives 0% brightness
Moving to second step gives 33% brightness
...
Moving to last step gives 100% brightness

Other information

GUI showing 0% on both the first and second slider value steps

Doubt it's of much use but as per https://github.com/Gigadoc2/i3-cinnamon/blob/master/README.md#keyboard-backlight I was able to test StepUp / StepDown worked just fine and let me reach 100% keyboard backlight brightness for example.

/sys/class/leds/asus::kbd_backlight/brightness goes from 0 up to 3 in value fwiw.

https://github.com/linuxmint/cinnamon/blob/master/files/usr/share/cinnamon/applets/power%40cinnamon.org/applet.js

Configuration info, if applicable

{
    "labelinfo": {
        "type": "combobox",
        "description": "Display",
        "default": "nothing",
        "options": {
            "Show percentage": "percentage",
            "Show time remaining": "time",
            "Show percentage and time remaining": "percentage_time",
            "Hide label": "nothing"
        },
        "value": "percentage_time"
    },
    "showmulti": {
        "type": "switch",
        "default": false,
        "description": "Always show all batteries",
        "tooltip": "Check this to always show multiple batteries in the panel, regardless of whether one of them is marked primary.",
        "value": false
    },
    "__md5__": "db29025b0930e93063f745d0adcc675a"
}