openFrameworks - ofxGui theme. check font file exist

ofApp.cpp

//ofxGui theme
string path = GLOBAL_Path + "fonts/overpass-mono-bold.otf";
ofFile file(path);
if (file.exists())
{
	ofLogNotice("ofxSceneTEST") << "ofxGui theme: LOADED FONT FILE '" << path << "'";
	ofxGuiSetFont(path, 9);
}
else
{
	ofLogError("ofxSceneTEST") << "ofxGui theme: FONT FILE '" << path << "' NOT FOUND!";
}
ofxGuiSetDefaultHeight(20);
ofxGuiSetBorderColor(32);
ofxGuiSetFillColor(ofColor(48));
ofxGuiSetTextColor(ofColor::white);
ofxGuiSetHeaderColor(ofColor(24));