Disabled checkbox check icon has confusing fill opacity

[gredman2018]

Environment

• Package version(s):
• Operating System: MacOS Sonoma 14.3
• Browser name and version: Chrome 122.0.6261.94

Code Sandbox

Steps to reproduce

1. Blueprint Checkbox/Disabled/Check icon in code/web has a fill of White [#FFFFFF], 100% opacity
2. This is the same fill as the Checkbox/Default/Check icon
3. The checkbox does not appear disabled as a result

Actual behavior

The Checkbox/Disabled/Check icon has a fill of White [#FFFFFF], 100% opacity

Expected behavior

The Checkbox/Disabled/Check icon should have a fill of White [#FFFFFF], 50% opacity. This is consistent with the disabled icon styles for buttons/other components and will clearly communicate that the checkbox is not interactive.

Possible solution

The Checkbox/Disabled/Check icon should have a fill of White [#FFFFFF], 50% opacity. This is consistent with the disabled icon styles for buttons/other components and will clearly communicate that the checkbox is not interactive.