Fixed medium priority color to yellow1 (a lighter shade of yellow) in both _colorize_priority() (line 4985) and IssueEditScreen RadioButton colors (line 1357). The previous color 'white' was incorrect - changed to a light yellow as specified. Changes committed to TRCKR-colors branch and pushed to remote.

INCORRECT IMPLEMENTATION: Medium priority uses 'white' color, not yellow as specified. Color needs to be changed to yellow.

choose a lighter shade