Windows 10: How to create definite icons for the Windows 10 system tray?

Hi!Overall, the Windows default icons are fine but some of them aren't discernible enough, especially in the system tray if you have eye sight problems. In order to change some icons, I converted simple png-files here:https://image.online-convert.com/convert-to-icoThen I changed the icons with CustomizerGod.Otherwise everything worked out nicely but the new icons looked a bit blurry compared with Windows default icons.Could anyone possibly tell how to create definite icons? What size and settings would be optimal when the display is 1920 x 1080 p with 125 % scaling? "Let Windows try to fix app

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unable to create tray icon...

When you start it manually, can it create the tray icon and the program works?

 

unable to create tray icon...

yes!

 

unable to create tray icon...

here gaian to update for the owner of the tool my experience:
NOTHING DONE of different in my pc and now at its starts,of the pc.., it works....,the tray icon tool..

so to sum up:
RANDOMLY it works
RANDOMLY it starts at start up,or with its settings or in a proper task scheduler BUT with the error:
- failed to create tray icon-...so you can only see the gpu-z.exe in task manager but you cannot open or see it..
to do it you have to stop it in task and to re start the tool manually..at this point you can see it in tray area and open its window on the
desktop....


what you think W1zzz...?

hoping to see yr replies ..!!
thxs so much in advance

cheers