Keycap and method for manufacturing the same

A method for manufacturing a keycap, including the steps of:

• performing a first shot for injection-molding a first plastic layer which is light-penetrable and includes a planar face, a back face opposite to the planar face and a closed loop protrusion integrally formed on the planar face and includes at least one passage communicating an interior and an exterior of the closed loop protrusion;
• performing a second shot for injection-molding a second plastic layer which is disposed on the first plastic layer, is different from the first plastic layer in color, includes an inner part disposed on the planar face and within the closed loop protrusion, an outer part disposed on the planar face and outside the closed loop protrusion and a connection portion connected with the inner and outer parts through the at least one passage;
• removing a part of the connection portion corresponding to the closed loop protrusion from the back face of the first plastic layer so as to expose a part of the first plastic layer from the back face of the first plastic layer.