I just stumbled upon the same problem and found a fix through on the HoloEverywhere issue tracker. You'll need to set the &lt;size&gt; of the drawable XML shape you are using.

Not working (the widget is there and I can interact with it, but I can't see it, it's hidden):

&lt;shape xmlns:android="http://schemas.android.com/apk/res/android"
  android:shape="rectangle"&gt;

  &lt;solid android:color="@color/black_50" /&gt;
&lt;/shape&gt;


Working (not the added &lt;size&gt;):

&lt;shape xmlns:android="http://schemas.android.com/apk/res/android"
  android:shape="rectangle"&gt;

  &lt;solid android:color="@color/black_50" /&gt;
  &lt;size android:width="56dp" android:height="20dp" /&gt;
&lt;/shape&gt;


Android Switch Widget: Setting android:track causes thumb and track to not show up
So, say we are working with non-CH mathematics. This means, AFAIK, that there is at least one set $S$ in our non-CH mathematics, whose cardinality is intermediate between $|\mathbb{N}|$ (card. of naturals) and $|\mathbb{R}|=2^\mathbb{N}$, the continuum.

Question: what kind of objects would we find in this set $S$?

Also: is this mathematics radically different from the one where CH holds?

Specifically, are there results that are used in everyday math , at a relatively introductory level, which do not hold on our non-CH math.?. What results that we find in everyday math would not hold in our new math?  Would there, e.g., still exist non-measurable sets? Maybe more specifically: what results depend on the CH?
