adjust boxes

bind.sty

@@ -30,13 +30,12 @@
 \RequirePackage{colortbl}
 \RequirePackage[poster]{tcolorbox}
 \tcbuselibrary{breakable,raster}
-%\tcbset{enhanced, attach boxed title to top center={yshift*=-3mm},drop shadow east,colback=white,arc=6mm,outer arc=1mm}
 
 \tcbset{enhanced, drop shadow east,
-colframe=black,colbacktitle=black!5!white,
+colframe=gray,colbacktitle=black!5!white,
 fonttitle=\bfseries,coltitle=black,attach boxed title to top center=
 {yshift=-0.25mm-\tcboxedtitleheight/2,yshifttext=-2mm-\tcboxedtitleheight/2},
-boxed title style={boxrule=0.5mm,
+boxed title style={boxrule=-0.5mm,
 frame code={ \path[tcb fill frame] ([xshift=-4mm]frame.west)
 -- (frame.north west) -- (frame.north east) -- ([xshift=4mm]frame.east)
 -- (frame.south east) -- (frame.south west) -- cycle; },
@@ -276,7 +275,7 @@ bookmarks=true]%
 
 \newenvironment{speechtext}{\begin{quotation}\noindent}{\end{quotation}}
 
-\tcolorboxenvironment{boxtext}{before upper={\parindent15pt}}
+\tcolorboxenvironment{boxtext}{arc=0mm, before upper={\parindent15pt}}
 \tcolorboxenvironment{speechtext}{}
 
 \newenvironment{rolltable}%