works:
1.add a "edit" button in palette card view to open edit view 
2.add a few drawable definitions for button with dark bg / no bg
rename "Send email" to "Email palette" to improve its readability
implement the share function in palette card view, and remove the unused
share logic/code from the main activity
tweak the palette card appearance
add a "share" button in palette card view
refactor on main activity to remove the action tabs and use the page
title strip instead, and tweak its theme to make it look nice