java - Changing Actionbar Overflow Icon in code: weird resizing -

goal:

changing actionbar's overflow item icon color. new icon should input via svg.

state:

note overflow icon replace refresh icon examine size differences. replaced overflow icon later. both icons loaded using same method, same parameter, same .svg file.
use svg-android-2 .svg loading , rendering.

modification code:

please don't discuss danger of using reflective code before having solved problem :)

// http://grepcode.com/file/repository.grepcode.com/java/ext/com.google.android/android/4.2.2_r1/com/android/internal/app/actionbarimpl.java/ private void hackoverflowicon() {     actionbar actionbar = getactionbar();      if (actionbar.getclass().getname().equals("com.android.internal.app.actionbarimpl")) {         try {             field actionbarviewfield = actionbar.getclass().getdeclaredfield("mactionview");             actionbarviewfield.setaccessible(true);             object actionbarview = actionbarviewfield.get(actionbar);              field actionmenuviewfield = actionbarview.getclass().getsuperclass().getdeclaredfield("mactionmenupresenter");             actionmenuviewfield.setaccessible(true);             object actionmenu = actionmenuviewfield.get(actionbarview);              field overflowviewfield = actionmenu.getclass().getdeclaredfield("moverflowbutton");             overflowviewfield.setaccessible(true);             imagebutton overflowview = (imagebutton) overflowviewfield.get(actionmenu);              drawable drawable=svgutils.getdrawablefromraw(this, r.drawable.refresh, new rectf(0, 0, 120, 120));             overflowview.setimagedrawable(drawable);         } catch (nosuchfieldexception e) {             e.printstacktrace();         } catch (illegalaccessexception e) {             e.printstacktrace();         } catch (nullpointerexception e) {             e.printstacktrace();         }     } else         throw new illegalstateexception("actionbar instance of " + actionbar.getclass().getname()); } 

question:

why icons have different sizes , how can prevent size changes?

thanks reading , on problem,
till