Disable some hovering bg color & modify a bg color on Tb's compose window

This background color is what i need for all "To" "From" "Paragraph" & "Font type (times new roman)" backgrounds. Hovering on "To" darkens it, i don't want it darkened, no action upon hovering. & Paragraph & Times new roman background intensity remains static. Those colors are "grey" shades, imposed by tb on my general background:

MsgHeadersToolbar, #FormatToolbar { background: #F7E7FE !important; }

Screenshot