You have the same description for "Change_Theme" button as you do for "Timer_Icon" button: <iconPacks:PackIconMaterial Name="Timer_Ico n" Kind="play" Margin="0,0,0,0 " ToolTip="Change the main theme of the tool"/> Just needs to be corrected and explanation provided for the functionality (as I initially though it is to pause TS).
Can you please look into "Make a screenshot" as this function does not work. Maybe missing code or some sort of binary is required?