UIView with Mask

Can be used for rounded button or circle image, etc. It looks like:
https://www.dropbox.com/s/jj82zassj964vqq/Screenshot%202014-06-06%2014.57.06.png

Sample code:

[button_view_mask1 enable_mask_circle];
[button_view_mask2 enable_mask_circle];
[button_view_mask3 enable_mask_circle_width:1 color:[UIColor redColor]];
[label_view_mask enable_border_width:1 color:[UIColor blueColor] radius:5];

Part of LCategory: https://github.com/superarts/LCategory