If disabled, the brightness value is not included in the preset. This can be useful e.g. when you want to control the brightness manually and want the preset to only set the effect.
This is an important one. Make sure it is enabled for your boot preset, so that your segment config is properly restored on boot!
When disabled, the segment start and stop LEDs are not included in the preset. This can be useful if you plan to make changes to your segment setup and don't want your presets to always reset it to the point it was when the preset was saved.
This new preset system is quite fast where it matters, reading the presets.
Applying a preset will typically take less than a tenth of a second.
However, due to a design choice of the LittleFS filesystem used by WLED, random writes to the preset file are very resource intensive.
This means that while updating your presets, you might notice your light freezing and becoming unresponsive for up to a few seconds.
Adding new presets is usually very fast, those performance issues will occur once you delete/edit/overwrite older presets and your preset file becomes very large, or when adding presets after deleting older ones.
I'm looking into ways to mitigate this situation as soon as possible! Meanwhile, to keep things snappy, I would recommend not having more than 50-ish single segment or a dozen of multi-segment presets.
#### What about my cool presets from earlier versions?
Obtaining the preset list is possible with the /presets.json file
Seeing the name of the current preset with the API only is not possible, you can only obtain its ID. Then you'd need some code to match it with the entries from presets.json (this is also what the UI does). See section "Backing up/restoring presets".
#### Saving named presets
Save a named preset with {"psave":<presetnumberhere>;"n":"Preset name","ib":true,"sb":true}
In 0.9.0, the last preset (16) is capable of saving the entire segment configuration. All other presets only save a single segment (main segment, the first one by default) and restore that preset to all selected segments.
In the Favorites tab, the number buttons from 1-16 are the different save slots. Find a config you like, then toggle _Saving mode_ on and click on a number to save the preset to that slot. If _Saving mode_ is toggled off, you can restore presets with a single click.
If you want to start the preset cycle on boot, go to LED settings and tick "Save current preset cycle configuration as boot default
To modify the duration of the preset cycle, ensure the preset cycle box is unchecked before entering a new time value. Once updated, the preset cycle can be enabled again"