Translucency

SkinCalc, which is completely free, features standard and advanced calculator functionality, a spreadsheet interface, and skins. Skins make it possible to change the layout and functionality of the software, with effects that include non-rectangular shapes, user-configurable transparency and alpha channel translucency. More than 100 skins are available from the sites listed at skincalc.com, which also has instructions to create your own skins.

Measure the distance between two points on your screen, get the exact location and size of an element on a web page, measure in pixels, centimeters or millimeters, both horizontally and vertically? Screen Ruler is your choice.

WorldCalc is a calculator and currency converter with daily exchange rate updates provided by Cloanto, a leader in currency software and services. Features include support for past and future euro currencies, a spreadsheet interface and translucent skins. The unregistered version displays an advertising banner. The registered version can use more than 100 different skins.

Euro Calculator is a calculator and currency converter with daily exchange rate updates provided by Cloanto, a leader in currency software and services. Features include support for past and future euro currencies, a spreadsheet interface annd translucent skins. Calculator and euro conversion functionality never expire (freeware). Custom licenses and support for agencies, web sites, redistribution and corporate deployment are available.