I second another comment that says make it smaller. Because as it stands this mod does not have a reason to exist, since this setting exists in the base game. It is the hidden settings menu, accessed by opening settings while holding Ctrl+Shift. Select 'The rest' then scroll around 1/3rd of the way down and find the setting hide-frozen-icon.

hold Ctrl+Shift open settings
open 'the rest'
scroll down 1/3rd (last in Other settings)
check 'hide-frozen-icon'

This setting's introduction is not documented in any official changelog. This setting did not exist when this mod was made. Currently, this setting only exists in hidden debug settings.

Until this option is added to the main settings and documented in official changelogs, this mod's existence is perfectly justified.