color grading plugin

[meetdilip]

I tried colour grading filter on an image using GMIC. There was no preview and when I hit Apply and OK, the image didn't change either.

Edit : Something related to the image. I tried a new scenic one and it changed a lot. But still no preview.

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I am on KDE Neon 5.22. Place both py and png in the plugin folder and got this error through 3 restarts

" Color Grading Plugin Error: Color Wheel image can't be found. (file: colorwheel_150.png) "

I followed the ReadMe and both files are in the plugin folde.r