Lowlight Go Errors
In Golang, error checks in the code make it difficult to read the code.
The Lowlight Go Errors extension will change the opacity(also change colors after Update 1.1.0) of if clauses which checking errors in golang.

Commands

lowlightgoerrors.LowOpacity sets the current opacity to low.
lowlightgoerrors.MediumOpacity sets the current opacity to medium.
lowlightgoerrors.HighOpacity sets the current opacity to high.
lowlightgoerrors.Toggle switches between low and high levels.
Configuration
This extension can be configured in User Settings or Workspace settings.

lowlightgoerrors.Enabled : true turns the plugin on and off
lowlightgoerrors.LowOpacity : "0.1" changes low opacity value
lowlightgoerrors.MediumOpacity : "0.5" changes medium opacity value
lowlightgoerrors.HighOpacity : 1 changes high opacity value
lowlightgoerrors.DefaultOpacity : "Medium" which opacity you want when vscode is first opened
lowlightgoerrors.LowlightInlineErrors : "false" lowlight inline errors
Acknowledgements
Special thanks to Ilker Aksu, who originally came up with the idea for this extension.