why are dithering level and trancparency tresholod disabled when saving as png?

[Yumeko322]

can i enable this somehow, or it's supposed to be this way?

 

i had paint net on my old computer and i think i could move these sliders, i don't even know what they are used to but still i'm kinda curious why they are disabled and how can i enable them?

4.2.13 is the version i have at the moment

[midora]

Please update to 4.3.12 or try the 5.0 beta, there is no support for older version on this forum.
Anyway, settings for dithering level and transparency threshold are only used if you like to save your image with 256 colors (8-bit) or less. They map the 32-bit color values used in paint.net to a reduced set of colors. If you switch bit depth to 8-bit or less then these settings will be enabled.

[Yumeko322]

2 hours ago, midora said:

Please update to 4.3.12 or try the 5.0 beta, there is no support for older version on this forum.
 

• NOTE: Windows 8.1 and Windows 7 SP1 are no longer supported.

so i wont be able to get any future help here?...

Edited January 10 by Yumeko322

[Rick Brewster]

5.0 won’t work on 7/8.1 at all. Once it’s released, forum support for 4.3.12 will also end.

 

If you’re still on Windows 7/8.1 then you really need to upgrade to 10 or 11. 

 

BTW 5.0 is releasing very soon

[MJW]

6 hours ago, Yumeko322 said:

can i enable this somehow, or it's supposed to be this way?

 

PNG is a lossless format, so I don't think it makes sense to have adjustments for dithering or transparency.

 

EDIT: I didn't consider that there are options for saving at lower than 8-bits-per-color-component resolution. So as Emily Litella, used to say, "Never mind!"