Light Panel Pro has some limitations controlling screen brightness on a Mac:

• Light Panel Pro only controls the brightness of the primary display in a multi-monitor setup. Given LightPanel Pro is intended to be used on a mobile device this is unlikely to be an issue in practice.

• Light Panel Pro can only control the brightness of a monitor if the Mac itself can control it's brightness (eg via the Display pane of System Preferences).

• LightPanel cannot control hardware screen brightness on an Apple Silicon Mac. This is because Apple have not provided a public API that works on Apple Silicon. There is a LightPanel build that does work, but unfortunately it can't be distributed on the App Store. If you have purchased the Mac version from the App Store and are interested in this version, please contact us with your App Store receipt and we can send it to you free of charge.

• Where hardware brightness can't be controlled, LightPanel dims the screen by modifying the gamma table of the display. As this may conflict with other apps that modify the gamma table (like monitor control apps), you can turn this off in LightPanel Preferences if necessary.

• As a last resort, LightPanel simulates dimming the app window in software.

Light Panel Pro on AppleTV has the following restrictions:

• Apple TV cannot control the brightness of the TV and LightPanel Pro simulates dimming the screen in software. Use the TV controls to increase brightness if required.

• tvOS has a simpler user interface than iOS and macOS:

  1. No sliders, so LightPanel Pro on AppleTV uses up/down buttons to replace the functionality of the Brightness, Temperature and Hue sliders.

  2. No menus, so there are no long-press button menus in LightPanel Pro on Apple TV. Long-press on a colour patch sets the patch to the current colour, rather than showing a menu.

  3. There are no Help, Contact or Share functions, but the Tutorial is available.

• There are no scanning grid or masks, as these functions don't make sense on a TV.

Remote Control has the following limitations:

• Remote Control uses bluetooth and/or Wifi to connect devices, so each device must have these enabled and be in range (and Airplane mode turned off).

• Only Wifi and Ethernet connectivity are supported on Mac & Apple TV.