Size of Buttons on the Office Compatible 97 Standard Toolbar

Office Compatible 97 toolbar buttons should be about 16 x 16 pixels by default, although minor deviations from this standard are acceptable. Large buttons must also be supported as an option, and developers are encouraged to use the new 32 x 32 pixel Office standard. Doing so means that only one set of toolbar icons must be included, since the standard 16 x 16 icons can be programmatically stretched to 32 x 32. Minor deviations from this standard are acceptable, but the difference must not be so great that it might distract, confuse, or annoy Office users.