add a new Tweak to ArdourButton that makes ImplicitActive state use a solid color...

add a new Tweak to ArdourButton that makes ImplicitActive state use a solid color (the "led active" color), and adjst rec-enable buttons to use pink (like ardour2) when in this state (which means rec-enabled but not recording). and yes, this means that you can't use ImplicitUsesSolidColor with a button that also uses an LED - acceptable limitation

git-svn-id: svn://localhost/ardour2/branches/3.0@13645 d708f5d6-7413-0410-9779-e7cbd77b26cf