XnViewMP 1.4.2
Windows11 (22H2), display resolution 3840x2160, dpi scale 150%
Viewer - Edit palette dialog
Issue
It is not possible to set transparency to multiple indexes at once.
No matter how many indexes you go through with ticking checkbox, transparency will be applied only to the last one.
It shall be possible to set transparency to as many indexes as required, and they applied all to image when OK button is pressed.
[feat] edit palette - cannot set transparency to multiple indexes
Moderators: helmut, XnTriq, xnview, Dreamer
[feat] edit palette - cannot set transparency to multiple indexes
Last edited by user0 on Sun Sep 14, 2025 1:23 pm, edited 2 times in total.
Re: 1.4.2 - edit pallete - cannot set transparency to multiple indexes
8bits palette support only 1 index
Pierre.
Re: 1.4.2 - edit pallete - cannot set transparency to multiple indexes
What about test_png_B.png, is it still valid 8bit png?
TweakPNG allows to edit alpha channel of individual color.
- test_png_A.png (178 Bytes) Viewed 1045 times
- test_png_B.png (486 Bytes) Viewed 1045 times
Also note the handy indicator of transparency in TweakPNG (red oval on x scale under each color)
Related
Last edited by user0 on Thu Mar 09, 2023 10:37 am, edited 4 times in total.
Re: 1.4.2 - edit pallete - cannot set transparency to multiple indexes
updated previous post with example
Re: 1.4.2 - edit pallete - cannot set transparency to multiple indexes
yes but not supported by XnView
Pierre.
Re: 1.4.2 - edit pallete - cannot set transparency to multiple indexes
it would be handy to have such support one day 